Knowledge

Reproducing kernel Hilbert space

Source 📝

2743: 31: 4065: 2335: 12064:
space with a bounded evaluation functional and show that this implies the existence of a unique reproducing kernel by the Riesz Representation theorem. Mercer's theorem can also be extended to address the vector-valued setting and we can therefore obtain a feature map view of the vvRKHS. Lastly, it can also be shown that the closure of the span of
8297: 6512: 4715: 5526: 8105: 5193: 4485: 5749: 12967:
While this view of the vvRKHS can be useful in multi-task learning, this isometry does not reduce the study of the vector-valued case to that of the scalar-valued case. In fact, this isometry procedure can make both the scalar-valued kernel and the input space too difficult to work with in practice
13263:
and is a mainstay in the architecture of neural networks where it is used as an activation function. One can construct a ReLU-like nonlinear function using the theory of reproducing kernel Hilbert spaces. Below, we derive this construction and show how it implies the representation power of neural
12063:
This second property parallels the reproducing property for the scalar-valued case. This definition can also be connected to integral operators, bounded evaluation functions, and feature maps as we saw for the scalar-valued RKHS. We can equivalently define the vvRKHS as a vector-valued Hilbert
2738:{\displaystyle \sum _{i,j=1}^{n}c_{i}c_{j}K(x_{i},x_{j})=\sum _{i=1}^{n}c_{i}\left\langle K_{x_{i}},\sum _{j=1}^{n}c_{j}K_{x_{j}}\right\rangle _{H}=\left\langle \sum _{i=1}^{n}c_{i}K_{x_{i}},\sum _{j=1}^{n}c_{j}K_{x_{j}}\right\rangle _{H}=\left\|\sum _{i=1}^{n}c_{i}K_{x_{i}}\right\|_{H}^{2}\geq 0} 616:
is usually defined as a Hilbert space whose elements are equivalence classes of functions it can be trivially redefined as a Hilbert space of functions by using choice to select a (total) function as a representative for each equivalence class. However, no choice of representatives can make this
3827: 8374:
is a Hilbert space which we will call the feature space. The first sections presented the connection between bounded/continuous evaluation functions, positive definite functions, and integral operators and in this section we provide another representation of the RKHS in terms of feature maps.
599:, but they do not converge uniformly (i.e., they do not converge with respect to the supremum norm). This illustrates that pointwise convergence does not imply convergence in norm. It is important to note that the supremum norm does not arise from any inner product, as it does not satisfy the 14113: 8907: 4273: 11074: 7883: 1452:
at every point in the domain, it does not lend itself to easy application in practice. A more intuitive definition of the RKHS can be obtained by observing that this property guarantees that the evaluation functional can be represented by taking the inner product of
9085: 8136: 6268: 776:
For ease of understanding, we provide the framework for real-valued Hilbert spaces. The theory can be easily extended to spaces of complex-valued functions and hence include the many important examples of reproducing kernel Hilbert spaces that are spaces of
4504: 13744: 2860: 10602: 9552: 5319: 3538: 7957: 13499: 4956: 4320: 5543: 527:
is small). This follows from the fact that the inner product induces pointwise evaluation control. Roughly speaking, this means that closeness in the RKHS norm implies pointwise closeness, but the converse does not necessarily hold.
13837: 7688: 5897: 3788: 14350: 9943: 4060:{\displaystyle |f(x)|\leq {\frac {1}{2\pi }}{\sqrt {2a\int _{-a}^{a}|F(\omega )|^{2}\,d\omega }}={\frac {\sqrt {2a}}{2\pi }}{\sqrt {\int _{-\infty }^{\infty }|F(\omega )|^{2}\,d\omega }}={\sqrt {\frac {a}{\pi }}}\|f\|_{L^{2}}.} 10793: 5964: 3269: 12288: 1740: 1303: 11544: 10891: 11246: 3398: 2007: 12802: 12058: 11975: 8738: 10062: 5281: 8462: 13939: 9193: 4856:. The Moore–Aronszajn theorem goes in the other direction; it states that every symmetric, positive definite kernel defines a unique reproducing kernel Hilbert space. The theorem first appeared in Aronszajn's 8772: 7297: 974: 12131: 4126: 6914: 12650: 12472: 7731: 2258: 12373: 11702: 14249: 9195:. This representation implies that the elements of the RKHS are inner products of elements in the feature space and can accordingly be seen as hyperplanes. This view of the RKHS is related to the 13331: 13101: 10942: 8292:{\displaystyle \left\langle f,g\right\rangle _{H}=\sum _{i=1}^{\infty }{\frac {\left\langle f,\varphi _{i}\right\rangle _{L_{2}}\left\langle g,\varphi _{i}\right\rangle _{L_{2}}}{\sigma _{i}}}.} 6507:{\displaystyle f(x)=\langle K_{x},f\rangle _{G}=\langle K_{x},f_{H}\rangle _{G}+\langle K_{x},f_{H^{\bot }}\rangle _{G}=\langle K_{x},f_{H}\rangle _{G}=\langle K_{x},f_{H}\rangle _{H}=f_{H}(x),} 13931: 8945: 9611: 12535: 7219: 10433: 8352: 4710:{\displaystyle \langle f,K_{x}\rangle _{L^{2}}=\int _{-\infty }^{\infty }f(y)\cdot {\overline {K_{x}(y)}}\,dy={\frac {1}{2\pi }}\int _{-a}^{a}F(\omega )\cdot e^{i\omega x}\,d\omega =f(x).} 284: 12705: 10490: 6736: 2301: 2153: 10363: 6807: 6222: 13201:
We lastly remark that the above theory can be further extended to spaces of functions with values in function spaces but obtaining kernels for these spaces is a more difficult task.
12202: 11829: 7170: 7412: 13550: 11864: 6142: 10276: 7533: 11585: 11449: 11381: 3579: 3310: 1421: 13198:. As the scalar-valued kernel encodes dependencies between the inputs, we can observe that the matrix-valued kernel encodes dependencies among both the inputs and the outputs. 9365: 5521:{\displaystyle f(x)=\sum _{i=1}^{\infty }a_{i}K_{x_{i}}(x)\quad {\text{where}}\quad \lim _{n\to \infty }\sup _{p\geq 0}\left\|\sum _{i=n}^{n+p}a_{i}K_{x_{i}}\right\|_{H_{0}}=0.} 2751: 14164: 10674: 10503: 9711: 9374: 9311: 9260: 8595: 3171: 13261: 12888: 12228: 11282: 7330: 6009: 1352: 525: 9651: 606:
It is not entirely straightforward to construct natural examples of a Hilbert space which are not an RKHS in a non-trivial fashion. Some examples, however, have been found.
11313: 3430: 3103: 13593: 12859: 8100:{\displaystyle H=\left\{f\in L_{2}(X)\,{\Bigg \vert }\,\sum _{i=1}^{\infty }{\frac {\left\langle f,\varphi _{i}\right\rangle _{L_{2}}^{2}}{\sigma _{i}}}<\infty \right\}} 6580: 2950: 571: 11411: 11335: 9115: 8937: 4822: 3667: 3621: 2323: 2175: 1847: 1825: 597: 140: 118: 14489: 12962: 12935: 8660: 8743:
This connection between kernels and feature maps provides us with a new way to understand positive definite functions and hence reproducing kernels as inner products in
6175: 6035: 2043: 1180: 199: 5188:{\displaystyle \left\langle \sum _{j=1}^{n}b_{j}K_{y_{j}},\sum _{i=1}^{m}a_{i}K_{x_{i}}\right\rangle _{H_{0}}=\sum _{i=1}^{m}\sum _{j=1}^{n}{a_{i}}b_{j}K(y_{j},x_{i}),} 4480:{\displaystyle \int _{-\infty }^{\infty }K_{x}(y)e^{-i\omega y}\,dy={\begin{cases}e^{-i\omega x}&{\text{if }}\omega \in ,\\0&{\textrm {otherwise}},\end{cases}}} 10189: 10122: 9775: 7723: 7366: 6953: 4787: 4312: 11738: 6617: 428: 13585: 13366: 11890: 11158: 10224: 10157: 9801: 8621: 6248: 3040: 1378: 225: 166: 13393: 12832: 7462: 7120: 7070: 7003: 6542: 4747: 4118: 3067: 2090: 1874: 1783: 1613: 1498: 1123: 1052: 642: 313: 7491: 6973: 6696: 5744:{\displaystyle \langle f,K_{x}\rangle _{H}=\sum _{i=1}^{\infty }a_{i}\left\langle K_{x_{i}},K_{x}\right\rangle _{H_{0}}=\sum _{i=1}^{\infty }a_{i}K(x_{i},x)=f(x).} 2990: 13176: 13130: 11768: 8553: 11608: 7556: 7435: 14184: 13196: 13150: 12993: 12908: 12151: 11788: 10935: 10915: 10386: 10296: 10086: 9734: 9671: 8761: 8518: 8498: 8372: 8128: 7949: 7929: 7906: 7576: 7090: 7043: 7023: 6673: 6649: 6077: 4842: 4088: 3819: 3645: 3599: 3422: 3136: 3014: 2970: 2900: 2880: 2113: 2063: 1894: 1803: 1633: 1586: 1566: 1542: 1518: 1471: 1450: 1147: 1096: 1076: 1025: 1005: 903: 883: 859: 831: 807: 689: 669: 468: 448: 396: 376: 353: 333: 96: 76: 13755: 7584: 8629:) is satisfied by the reproducing property. Another classical example of a feature map relates to the previous section regarding integral operators by taking 5786: 3690: 13401: 14257: 9810: 8520:. Conversely, every positive definite function and corresponding reproducing kernel Hilbert space has infinitely many associated feature maps such that ( 10694: 5905: 3179: 12156:
We can gain intuition for the vvRKHS by taking a component-wise perspective on these spaces. In particular, we find that every vvRKHS is isometrically
12541:
The connection to the scalar-valued RKHS can then be made by the fact that every matrix-valued kernel can be identified with a kernel of the form of (
12238: 7092:
is a reproducing kernel so that the corresponding RKHS can be defined in terms of these eigenvalues and eigenfunctions. We provide the details below.
1643: 14568: 1190: 11457: 14718: 10811: 11166: 1902: 14620: 14407:
Alpay, D., and T. M. Mills. "A family of Hilbert spaces which are not reproducing kernel Hilbert spaces." J. Anal. Appl. 1.2 (2003): 107–111.
12713: 3315: 11986: 11897: 8665: 14108:{\displaystyle K(x,y)=K_{y}(x)=\int _{0}^{x}G(z,y)\,dz={\begin{cases}x,&0\leq x<y\\y,&{\text{otherwise.}}\end{cases}}=\min(x,y)} 9958: 5201: 11712:
In this section we extend the definition of the RKHS to spaces of vector-valued functions as this extension is particularly important in
8902:{\displaystyle H_{\varphi }=\{f:X\to \mathbb {R} \mid \exists w\in F,f(x)=\langle w,\varphi (x)\rangle _{F},\forall {\text{ }}x\in X\}.} 8386: 9120: 14725:
Steinwart, Ingo; Scovel, Clint (2012). "Mercer's theorem on general domains: On the interaction between measures, kernels, and RKHSs".
7224: 4268:{\displaystyle K_{x}(y)={\frac {a}{\pi }}\operatorname {sinc} \left({\frac {a}{\pi }}(y-x)\right)={\frac {\sin(a(y-x))}{\pi (y-x)}}.} 14502:
Thomas-Agnan C . Computing a family of reproducing kernels for statistical applications. Numerical Algorithms, 13, pp. 21-32 (1996)
911: 12067: 8766:
Lastly, feature maps allow us to construct function spaces that reveal another perspective on the RKHS. Consider the linear space
14761:
Rosasco, Lorenzo and Poggio, Thomas. "A Regularization Tour of Machine Learning – MIT 9.520 Lecture Notes" Manuscript, Dec. 2014.
7878:{\displaystyle \lim _{n\to \infty }\sup _{u,v}\left|K(u,v)-\sum _{j=1}^{n}\sigma _{j}\,\varphi _{j}(u)\,\varphi _{j}(v)\right|=0.} 6815: 12553: 12378: 2183: 769:
of the kernel function evaluated at the training points. This is a practically useful result as it effectively simplifies the
12309: 11616: 14650:
De Vito, Ernest, Umanita, Veronica, and Villa, Silvia. "An extension of Mercer theorem to vector-valued measurable kernels,"
14192: 11069:{\displaystyle \|f\|_{H}^{2}=\int _{\mathbb {R} }{\Big (}{\frac {1}{\sigma }}f(x)^{2}+\sigma f'(x)^{2}{\Big )}\mathrm {d} x.} 13270: 13001: 9080:{\displaystyle \|f\|_{\varphi }=\inf\{\|w\|_{F}:w\in F,f(x)=\langle w,\varphi (x)\rangle _{F},\forall {\text{ }}x\in X\}.} 726:. The idea of the reproducing kernel remained untouched for nearly twenty years until it appeared in the dissertations of 699: 12995:-dimensional symmetric positive semi-definite matrix. In light of our previous discussion these kernels are of the form 9561: 1432:) is the weakest condition that ensures both the existence of an inner product and the evaluation of every function in 17: 8763:. Moreover, every feature map can naturally define a RKHS by means of the definition of a positive definite function. 14383: 12478: 4852:
We have seen how a reproducing kernel Hilbert space defines a reproducing kernel function that is both symmetric and
13845: 10391: 8325: 7175: 232: 12664: 10438: 6701: 2266: 2118: 10315: 6741: 6180: 862: 14719:
https://citeseerx.ist.psu.edu/document?repid=rep1&type=pdf&doi=440218056738e05b5ab43679f932a9f33fccee87
1055: 12163: 11793: 9950: 7129: 3794: 8303: 7371: 765:
which states that every function in an RKHS that minimises an empirical risk functional can be written as a
651:
An RKHS is associated with a kernel that reproduces every function in the space in the sense that for every
13507: 11834: 10608: 6094: 2855:{\displaystyle n\in \mathbb {N} ,x_{1},\dots ,x_{n}\in X,{\text{ and }}c_{1},\dots ,c_{n}\in \mathbb {R} .} 1545: 715: 10597:{\displaystyle K(x,y)=(\alpha \langle x,y\rangle +1)^{d},\qquad \alpha \in \mathbb {R} ,d\in \mathbb {N} } 10236: 9547:{\displaystyle K((x_{1},\ldots ,x_{p}),(y_{1},\ldots ,y_{p}))=K_{1}(x_{1},y_{1})\cdots K_{p}(x_{p},y_{p})} 7496: 644:
would need to be the non-existent Dirac delta function). However, there are RKHSs in which the norm is an
14551:
Alvarez, Mauricio, Rosasco, Lorenzo and Lawrence, Neil, “Kernels for Vector-Valued Functions: a Review,”
13210: 11552: 11416: 11348: 3546: 3277: 770: 758: 9316: 1383: 14121: 11385: 10617: 9676: 9265: 9214: 8558: 3533:{\displaystyle \langle f,g\rangle _{L^{2}}=\int _{-\infty }^{\infty }f(x)\cdot {\overline {g(x)}}\,dx.} 3144: 610: 13739:{\displaystyle f(y)=\int _{0}^{y}f'(x)\,dx=\int _{0}^{\infty }G(x,y)f'(x)\,dx=\langle K_{y},f\rangle } 13216: 12864: 12306:
As noted above, the RKHS associated to this reproducing kernel is given by the closure of the span of
12207: 11258: 7302: 5969: 4491: 1324: 473: 9620: 5299: 3681: 14359:
to the RKHS, letting one prove the optimality of using ReLU activations in neural network settings.
14034: 13785: 11290: 11196: 4395: 3076: 14368: 12837: 8302:
This representation of the RKHS has application in probability and statistics, for example to the
6551: 4876: 4853: 3674: 2913: 719: 534: 55: 11394: 11318: 9093: 8915: 4792: 3650: 3604: 2306: 2158: 1830: 1808: 576: 123: 101: 14808: 14710:
Okutmustur, Baver. “Reproducing Kernel Hilbert Spaces,” M.S. dissertation, Bilkent University,
12940: 12913: 11717: 8632: 4495: 3798: 6147: 6014: 2015: 1152: 171: 7888:
This above series representation is referred to as a Mercer kernel or Mercer representation of
3624: 703: 691:" can be performed by taking an inner product with a function determined by the kernel. Such a 14662: 10162: 10095: 9739: 7696: 7335: 6922: 4756: 4281: 11723: 6589: 600: 401: 14780: 13555: 13336: 11869: 11128: 10194: 10127: 9780: 8600: 6227: 3019: 1357: 204: 145: 14746: 14703: 14643: 14599: 13371: 12810: 11388: 7440: 7098: 7048: 6981: 6520: 4750: 4725: 4096: 3670: 3045: 2068: 1852: 1761: 1591: 1476: 1101: 1030: 838: 620: 291: 11790:. More formally, we define a vector-valued RKHS (vvRKHS) as a Hilbert space of functions 7467: 7126:
for self-adjoint operators implies that there is an at most countable decreasing sequence
6958: 6681: 2975: 8: 14388: 14373: 14356: 13832:{\displaystyle G(x,y)={\begin{cases}1,&x<y\\0,&{\text{otherwise}}\end{cases}}} 13155: 13109: 11747: 11713: 8532: 7683:{\displaystyle K(x,y)=\sum _{j=1}^{\infty }\sigma _{j}\,\varphi _{j}(x)\,\varphi _{j}(y)} 6652: 3116: 762: 711: 39: 11590: 7538: 7417: 14750: 14651: 14587: 14169: 13181: 13135: 12978: 12893: 12136: 11773: 10920: 10900: 10371: 10281: 10089: 10071: 9719: 9656: 8746: 8503: 8500:
is symmetric and positive definiteness follows from the properties of inner product in
8483: 8357: 8113: 7934: 7914: 7891: 7561: 7075: 7028: 7008: 6658: 6634: 6062: 5892:{\displaystyle \langle K_{x},K_{y}\rangle _{H}=K(x,y)=\langle K_{x},K_{y}\rangle _{G}.} 4827: 4073: 3804: 3783:{\displaystyle f(x)={\frac {1}{2\pi }}\int _{-a}^{a}F(\omega )e^{ix\omega }\,d\omega .} 3630: 3584: 3407: 3121: 3070: 2999: 2955: 2885: 2865: 2098: 2048: 1879: 1788: 1618: 1571: 1551: 1527: 1503: 1456: 1435: 1132: 1081: 1061: 1010: 990: 888: 868: 844: 816: 792: 778: 766: 674: 654: 453: 433: 381: 361: 338: 318: 81: 61: 14674: 14582: 14563: 6738:
a continuous, symmetric, and positive definite function. Define the integral operator
14754: 14717:
Paulsen, Vern. “An introduction to the theory of reproducing kernel Hilbert spaces,”
14694: 14559: 14416:
Z. Pasternak-Winiarski, "On weights which admit reproducing kernel of Bergman type",
13504:
To construct the reproducing kernel it suffices to consider a dense subspace, so let
13494:{\displaystyle \langle f,g\rangle _{\mathcal {H}}=\int _{0}^{\infty }f'(x)g'(x)\,dx.} 3401: 3109: 2862:
The Moore–Aronszajn theorem (see below) is a sort of converse to this: if a function
2326: 810: 754: 750: 739: 723: 707: 14345:{\displaystyle \min(x,y)=x-\operatorname {ReLU} (x-y)=y-\operatorname {ReLU} (y-x).} 9938:{\displaystyle d_{K}(x,y)=\|K_{x}-K_{y}\|_{H}^{2}=2(1-K(x,y))\qquad \forall x\in X.} 14734: 14689: 14629: 14577: 10788:{\displaystyle K(x,y)=e^{-{\frac {\|x-y\|^{2}}{2\sigma ^{2}}}},\qquad \sigma >0} 7123: 5959:{\displaystyle \langle \cdot ,\cdot \rangle _{H}=\langle \cdot ,\cdot \rangle _{G}} 3264:{\displaystyle H=\{f\in L^{2}(\mathbb {R} )\mid \operatorname {supp} (F)\subset \}} 3139: 2993: 1126: 773:
problem from an infinite dimensional to a finite dimensional optimization problem.
746: 727: 14634: 14615: 14742: 14699: 14639: 14595: 12661:) defines a matrix-valued kernel with the above expression. Now letting the map 6978:
Mercer's theorem states that the spectral decomposition of the integral operator
735: 12283:{\displaystyle \gamma :X\times \Lambda \times X\times \Lambda \to \mathbb {R} .} 1735:{\displaystyle f(x)=L_{x}(f)=\langle f,\ K_{x}\rangle _{H}\quad \forall f\in H.} 757:. Reproducing kernel Hilbert spaces are particularly important in the field of 14711: 11091: 11084: 7493:
and therefore we may choose continuous functions as the eigenvectors, that is,
1298:{\displaystyle |L_{x}(f)|:=|f(x)|\leq M_{x}\,\|f\|_{H}\qquad \forall f\in H.\,} 731: 14738: 11539:{\displaystyle K(x,y)={\frac {1}{\pi }}{\frac {1}{(1-x{\overline {y}})^{2}}}.} 4070:
This inequality shows that the evaluation functional is bounded, proving that
14802: 11342: 11111: 6676: 861:, equipped with pointwise addition and pointwise scalar multiplication. The 834: 738:. The subject was eventually systematically developed in the early 1950s by 51: 12975:
kernels which can factorized as the product of a scalar valued kernel and a
7578:
may be written in terms of the eigenvalues and continuous eigenfunctions as
648:-norm, such as the space of band-limited functions (see the example below). 14661:
Durrett, Greg. 9.520 Course Notes, Massachusetts Institute of Technology,
14378: 9196: 3113: 10886:{\displaystyle K(x,y)=e^{-{\frac {\|x-y\|}{\sigma }}},\qquad \sigma >0} 30: 14764: 14670: 11241:{\displaystyle K(x,y)={\begin{cases}1&x=y\\0&x\neq y\end{cases}}} 4861: 2882:
satisfies these conditions then there is a Hilbert space of functions on
14429:
T. Ł. Żynda, "On weights which admit reproducing kernel of Szegő type",
10388:
corresponding to this kernel is the dual space, consisting of functions
3393:{\textstyle F(\omega )=\int _{-\infty }^{\infty }f(t)e^{-i\omega t}\,dt} 2910:
The simplest example of a reproducing kernel Hilbert space is the space
2002:{\displaystyle K_{x}(y)=L_{y}(K_{x})=\langle K_{x},\ K_{y}\rangle _{H},} 14591: 12797:{\displaystyle (Df)(x,t)=\langle f(x),e_{t}\rangle _{\mathbb {R} ^{T}}} 12157: 8307: 2325:
in the complex case) is both symmetric (resp. conjugate symmetric) and
12053:{\displaystyle \langle f,\Gamma _{x}c\rangle _{H}=f(x)^{\intercal }c.} 11970:{\displaystyle \Gamma _{x}c(y)=\Gamma (x,y)c\in H{\text{ for }}y\in X} 8733:{\displaystyle \varphi (x)=({\sqrt {\sigma _{i}}}\varphi _{i}(x))_{i}} 11338: 10057:{\displaystyle K(x,y)^{2}\leq K(x,x)K(y,y)=1\qquad \forall x,y\in X.} 5276:{\displaystyle K(x,y)=\left\langle K_{x},K_{y}\right\rangle _{H_{0}}} 7122:
is a compact, continuous, self-adjoint, and positive operator. The
358:
An immediate consequence of this property is that if two functions
11345: 8457:{\displaystyle K(x,y)=\langle \varphi (x),\varphi (y)\rangle _{F}.} 14655: 14552: 9188:{\displaystyle K(x,y)=\langle \varphi (x),\varphi (y)\rangle _{F}} 5283:. The symmetry of this inner product follows from the symmetry of 3112:, as we now illustrate by example. Consider the Hilbert space of 315:
is called the reproducing kernel, and it reproduces the value of
13204: 695:
exists if and only if every evaluation functional is continuous.
34:
Figure illustrates related but varying approaches to viewing RKHS
11110:
can be represented as an array of complex numbers. If the usual
9313:
be a collection of corresponding positive definite functions on
698:
The reproducing kernel was first introduced in the 1907 work of
14608:
Reproducing kernel Hilbert spaces in Probability and Statistics
14490:
Reproducing kernel Hilbert spaces in Probability and Statistics
7292:{\displaystyle T_{K}\varphi _{i}(x)=\sigma _{i}\varphi _{i}(x)} 885:
is a linear functional that evaluates each function at a point
14418:
International Journal of Mathematics and Mathematical Sciences
969:{\displaystyle L_{x}:f\mapsto f(x){\text{ }}\forall f\in H.} 671:
in the set on which the functions are defined, "evaluation at
54:
of functions in which point evaluation is a continuous linear
14772: 12126:{\displaystyle \{\Gamma _{x}c:x\in X,c\in \mathbb {R} ^{T}\}} 11740:
is a symmetric function that is now a positive semi-definite
12971:
An important class of matrix-valued reproducing kernels are
6955:
is the space of square integrable functions with respect to
6675:
be a compact space equipped with a strictly positive finite
14663:
https://www.mit.edu/~9.520/scribe-notes/class03_gdurett.pdf
14251:
has the following representations with the ReLu function:
14080: 13825: 11234: 6909:{\displaystyle (\cdot )=\int _{X}K(\cdot ,t)f(t)\,d\mu (t)} 4473: 3108:
Nontrivial reproducing kernel Hilbert spaces often involve
12645:{\displaystyle \Gamma (x,y)_{(t,s)}=\gamma ((x,t),(y,s)).} 6626: 12467:{\displaystyle \gamma _{(x,t)}(y,s)=\gamma ((x,t),(y,s))} 12160:
to a scalar-valued RKHS on a particular input space. Let
7464:
maps continuously into the space of continuous functions
6631:
We may characterize a symmetric positive definite kernel
2253:{\displaystyle K(x,y)=\langle K_{x},\ K_{y}\rangle _{H}.} 12368:{\displaystyle \{\gamma _{(x,t)}:x\in X,t\in \Lambda \}} 11697:{\displaystyle K(x,y)={\frac {\sin a(x-y)}{\pi (x-y)}}.} 10614:
These are another common class of kernels which satisfy
1544:
from which the RKHS takes its name. More formally, the
722:
which satisfy the reproducing property in the theory of
14244:{\displaystyle X\times X=[0,\infty )\times [0,\infty )} 11707: 4883:. Then there is a unique Hilbert space of functions on 4720:
Thus we obtain the reproducing property of the kernel.
14779:
Zhang, Haizhang; Xu, Yuesheng; Zhang, Qinghui (2012).
13326:{\displaystyle {\mathcal {H}}=L_{2}^{1}(0)[0,\infty )} 12968:
as properties of the original kernels are often lost.
12153:, another property similar to the scalar-valued case. 11720:. The main difference is that the reproducing kernel 7178: 3318: 1386: 14260: 14195: 14172: 14124: 13942: 13848: 13758: 13596: 13558: 13510: 13404: 13374: 13339: 13273: 13219: 13184: 13158: 13138: 13112: 13096:{\displaystyle \gamma ((x,t),(y,s))=K(x,y)K_{T}(t,s)} 13004: 12981: 12943: 12916: 12896: 12867: 12840: 12813: 12716: 12667: 12556: 12481: 12381: 12312: 12241: 12210: 12166: 12139: 12070: 11989: 11900: 11872: 11837: 11796: 11776: 11750: 11726: 11619: 11593: 11555: 11460: 11419: 11397: 11351: 11321: 11293: 11261: 11169: 11131: 10945: 10923: 10903: 10814: 10697: 10620: 10506: 10441: 10394: 10374: 10318: 10284: 10239: 10197: 10165: 10130: 10098: 10074: 9961: 9813: 9783: 9742: 9722: 9679: 9659: 9623: 9564: 9377: 9319: 9268: 9217: 9123: 9096: 8948: 8918: 8775: 8749: 8668: 8635: 8603: 8561: 8535: 8506: 8486: 8389: 8360: 8328: 8139: 8116: 7960: 7937: 7917: 7894: 7734: 7699: 7587: 7564: 7541: 7499: 7470: 7443: 7420: 7374: 7338: 7305: 7227: 7132: 7101: 7078: 7051: 7031: 7011: 6984: 6961: 6925: 6818: 6744: 6704: 6684: 6661: 6637: 6592: 6554: 6523: 6271: 6230: 6183: 6150: 6097: 6065: 6017: 5972: 5908: 5789: 5546: 5322: 5204: 4959: 4830: 4795: 4759: 4728: 4507: 4323: 4284: 4129: 4099: 4076: 3830: 3807: 3693: 3653: 3633: 3607: 3587: 3549: 3433: 3410: 3280: 3182: 3147: 3124: 3079: 3048: 3022: 3002: 2978: 2958: 2916: 2888: 2868: 2754: 2338: 2309: 2269: 2186: 2161: 2121: 2101: 2071: 2051: 2018: 1905: 1882: 1855: 1833: 1811: 1791: 1764: 1646: 1621: 1594: 1574: 1554: 1530: 1506: 1479: 1459: 1438: 1360: 1327: 1193: 1155: 1135: 1104: 1084: 1064: 1033: 1013: 993: 914: 891: 871: 847: 819: 795: 677: 657: 623: 579: 537: 476: 456: 436: 404: 384: 364: 341: 321: 294: 235: 207: 174: 148: 126: 104: 84: 64: 3581:, it is a HIlbert space. Moreover, the elements of 14781:"Refinement of Operator-valued Reproducing Kernels" 13587:. The Fundamental Theorem of Calculus then gives 2095:This allows us to define the reproducing kernel of 14344: 14243: 14178: 14158: 14107: 13925: 13831: 13738: 13579: 13544: 13493: 13387: 13360: 13325: 13255: 13190: 13170: 13144: 13124: 13095: 12987: 12956: 12929: 12902: 12882: 12853: 12826: 12796: 12699: 12644: 12529: 12466: 12367: 12282: 12222: 12196: 12145: 12125: 12052: 11969: 11884: 11858: 11823: 11782: 11762: 11732: 11696: 11602: 11579: 11538: 11443: 11413:. It can be shown that the reproducing kernel for 11405: 11375: 11329: 11307: 11276: 11240: 11152: 11068: 10929: 10909: 10885: 10787: 10668: 10596: 10484: 10427: 10380: 10357: 10290: 10270: 10218: 10183: 10151: 10116: 10080: 10056: 9937: 9795: 9769: 9728: 9705: 9665: 9645: 9605: 9546: 9359: 9305: 9254: 9187: 9109: 9079: 8931: 8901: 8755: 8732: 8654: 8615: 8589: 8547: 8512: 8492: 8456: 8366: 8346: 8291: 8122: 8099: 7943: 7923: 7900: 7877: 7717: 7682: 7570: 7550: 7527: 7485: 7456: 7429: 7406: 7360: 7324: 7291: 7213: 7164: 7114: 7084: 7064: 7045:in terms of the eigenvalues and eigenfunctions of 7037: 7017: 6997: 6967: 6947: 6908: 6801: 6730: 6690: 6667: 6643: 6611: 6574: 6536: 6506: 6242: 6216: 6169: 6136: 6071: 6029: 6003: 5958: 5891: 5743: 5520: 5287:and the non-degeneracy follows from the fact that 5275: 5187: 4836: 4816: 4781: 4741: 4709: 4479: 4306: 4267: 4112: 4082: 4059: 3813: 3782: 3661: 3639: 3623:that tend to zero at infinity, essentially by the 3615: 3593: 3573: 3532: 3416: 3392: 3304: 3263: 3165: 3130: 3097: 3061: 3034: 3008: 2984: 2964: 2944: 2894: 2874: 2854: 2737: 2317: 2295: 2252: 2169: 2147: 2107: 2084: 2057: 2037: 2001: 1888: 1868: 1841: 1819: 1797: 1777: 1734: 1627: 1607: 1580: 1560: 1536: 1512: 1492: 1465: 1444: 1415: 1372: 1346: 1297: 1174: 1141: 1117: 1090: 1070: 1046: 1019: 999: 968: 897: 877: 853: 825: 801: 683: 663: 636: 591: 565: 519: 462: 442: 422: 390: 370: 347: 327: 307: 278: 219: 193: 160: 134: 112: 90: 70: 14682:Journal of Mathematical Analysis and Applications 14675:"Some results on Tchebycheffian Spline Functions" 14569:Transactions of the American Mathematical Society 11050: 10984: 9606:{\displaystyle X=X_{1}\times \dots \times X_{p}.} 8000: 4749:in this case is the "bandlimited version" of the 531:For example, consider the sequence of functions 14800: 14261: 14087: 13235: 10607: 8968: 7752: 7736: 7180: 5758:be another Hilbert space of functions for which 5419: 5403: 1388: 573:. These functions converge pointwise to 0 as 477: 14724: 12530:{\displaystyle (x,t),(y,s)\in X\times \Lambda } 11549:Lastly, the space of band limited functions in 6655:and obtain an additional view of the RKHS. Let 4492:time-shifting property of the Fourier transform 3312:is the set of square integrable functions, and 865:functional over the Hilbert space of functions 745:These spaces have wide applications, including 14668: 13205:Connection between RKHSs and the ReLU function 11160:can be thought of as an identity matrix since 7214:{\textstyle \lim _{i\to \infty }\sigma _{i}=0} 1849:in the case of complex Hilbert spaces) and as 14621:Bulletin of the American Mathematical Society 14616:"On the Mathematical Foundations of Learning" 14431:Journal of Contemporary Mathematical Analysis 13926:{\displaystyle K_{y}'(x)=G(x,y),\ K_{y}(0)=0} 10428:{\displaystyle f(x)=\langle x,\beta \rangle } 8347:{\displaystyle \varphi \colon X\rightarrow F} 279:{\displaystyle \langle f,K_{x}\rangle =f(x).} 14778: 14712:http://www.thesis.bilkent.edu.tr/0002953.pdf 13733: 13714: 13418: 13405: 13250: 13238: 12776: 12747: 12700:{\displaystyle D:H_{\Gamma }\to H_{\gamma }} 12362: 12313: 12191: 12173: 12120: 12071: 12013: 11990: 10953: 10946: 10859: 10847: 10743: 10730: 10660: 10648: 10546: 10534: 10485:{\displaystyle \|f\|_{H}^{2}=\|\beta \|^{2}} 10473: 10466: 10449: 10442: 10422: 10410: 10352: 10340: 10265: 10240: 9869: 9842: 9176: 9145: 9071: 9042: 9020: 8981: 8974: 8971: 8956: 8949: 8893: 8864: 8842: 8789: 8442: 8411: 7319: 7306: 6470: 6443: 6431: 6404: 6392: 6358: 6346: 6319: 6307: 6287: 5998: 5973: 5947: 5934: 5922: 5909: 5877: 5850: 5817: 5790: 5567: 5547: 4528: 4508: 4038: 4031: 3447: 3434: 3258: 3189: 3086: 3080: 2263:From this definition it is easy to see that 2238: 2208: 1987: 1957: 1707: 1684: 1269: 1262: 417: 405: 255: 236: 14613: 11102:consist of all complex-valued functions on 7911:Furthermore, it can be shown that the RKHS 6731:{\displaystyle K:X\times X\to \mathbb {R} } 6051:Now we need to prove that every element of 5531:Now we can check the reproducing property ( 2296:{\displaystyle K:X\times X\to \mathbb {R} } 2148:{\displaystyle K:X\times X\to \mathbb {R} } 14433:(Armenian Academy of Sciences), 55, 2020. 10358:{\displaystyle K(x,y)=\langle x,y\rangle } 6802:{\displaystyle T_{K}:L_{2}(X)\to L_{2}(X)} 6217:{\displaystyle f_{H^{\bot }}\in H^{\bot }} 4847: 4824:in the weak sense as the cutoff frequency 14693: 14633: 14581: 14558: 14355:Using this formulation, we can apply the 14019: 13704: 13644: 13481: 12870: 12782: 12655:Moreover, every kernel with the form of ( 12273: 12230:and the corresponding reproducing kernel 12110: 11846: 11811: 11570: 11434: 11399: 11366: 11323: 11301: 11264: 10976: 10590: 10576: 8805: 8005: 7997: 7844: 7824: 7660: 7640: 6890: 6724: 5309:with respect to this inner product. Then 4682: 4608: 4380: 4007: 3926: 3770: 3655: 3609: 3564: 3520: 3383: 3295: 3212: 2845: 2762: 2311: 2289: 2163: 2141: 1835: 1813: 1294: 1261: 128: 106: 13395:) derivative. It has the inner product 13333:of absolutely continuous functions with 29: 14606:Berlinet, Alain and Thomas, Christine. 14487:Berlinet, Alain and Thomas, Christine. 12197:{\displaystyle \Lambda =\{1,\dots ,T\}} 11824:{\displaystyle f:X\to \mathbb {R} ^{T}} 8378:Every feature map defines a kernel via 7165:{\displaystyle (\sigma _{i})_{i}\geq 0} 6627:Integral operators and Mercer's theorem 27:In functional analysis, a Hilbert space 14: 14801: 7407:{\displaystyle T_{K},\sigma _{i}>0} 2902:for which it is a reproducing kernel. 398:in the RKHS are close in norm (i.e., 14614:Cucker, Felipe; Smale, Steve (2002). 13545:{\displaystyle f\in C^{1}[0,\infty )} 12910:is bijective and an isometry between 12861:component of the canonical basis for 11859:{\displaystyle c\in \mathbb {R} ^{T}} 10495: 6137:{\displaystyle f=f_{H}+f_{H^{\bot }}} 14788:Journal of Machine Learning Research 14769:Spline Models for Observational Data 13267:We will work with the Hilbert space 12232: 11708:Extension to vector-valued functions 11121:is the function whose value is 1 at 10271:{\displaystyle \{K_{x}\mid x\in X\}} 8380: 7528:{\displaystyle \varphi _{i}\in C(X)} 1637: 1184: 14610:, Kluwer Academic Publishers, 2004. 11580:{\displaystyle L^{2}(\mathbb {R} )} 11444:{\displaystyle H^{2}(\mathbb {D} )} 11376:{\displaystyle H^{2}(\mathbb {D} )} 10307: 8529:For example, we can trivially take 6048:and hence contains its completion. 5762:is a reproducing kernel. For every 3574:{\displaystyle L^{2}(\mathbb {R} )} 3543:Since this is a closed subspace of 3305:{\displaystyle L^{2}(\mathbb {R} )} 1416:{\textstyle \sup _{x}M_{x}=\infty } 24: 14493:, Kluwer Academic Publishers, 2004 14235: 14217: 13664: 13536: 13442: 13423: 13317: 13276: 12922: 12679: 12557: 12524: 12359: 12266: 12254: 12217: 12167: 12075: 12000: 11926: 11902: 11727: 11610:is a RKHS with reproducing kernel 11341:) is more sophisticated. Here the 11083: 11056: 10302: 10068:This inequality allows us to view 10033: 9920: 9360:{\displaystyle (X_{i})_{i=1}^{p}.} 9054: 8876: 8812: 8185: 8089: 8022: 7746: 7625: 7190: 7025:yields a series representation of 6565: 6384: 6209: 6194: 6127: 5683: 5595: 5413: 5354: 5313:consists of functions of the form 4560: 4555: 4337: 4332: 3973: 3968: 3479: 3474: 3347: 3342: 3160: 1717: 1520:. This function is the so-called 1410: 1380:, it might still be the case that 1341: 1279: 951: 586: 25: 14820: 14583:10.1090/S0002-9947-1950-0051437-7 14384:Kernel embedding of distributions 14189:Moreover the minimum function on 14159:{\displaystyle K_{y}=K(\cdot ,y)} 13264:networks with ReLU activations. 10669:{\displaystyle K(x,y)=K(\|x-y\|)} 9803:. Define a pseudo-metric on X as 9706:{\displaystyle X_{0}\times X_{0}} 9306:{\displaystyle (K_{i})_{i=1}^{p}} 9255:{\displaystyle (X_{i})_{i=1}^{p}} 9117:is a RKHS with kernel defined by 8590:{\displaystyle \varphi (x)=K_{x}} 6517:where we have used the fact that 3166:{\displaystyle 0<a<\infty } 470:are also pointwise close (i.e., 58:. Specifically, a Hilbert space 13256:{\displaystyle f(x)=\max\{0,x\}} 12883:{\displaystyle \mathbb {R} ^{T}} 12223:{\displaystyle X\times \Lambda } 11277:{\displaystyle \mathbb {C} ^{n}} 7325:{\displaystyle \{\varphi _{i}\}} 6651:via the integral operator using 6004:{\displaystyle \{K_{x}:x\in X\}} 1785:is itself a function defined on 1347:{\displaystyle M_{x}<\infty } 985:reproducing kernel Hilbert space 520:{\displaystyle \sup |f(x)-g(x)|} 44:reproducing kernel Hilbert space 14564:"Theory of Reproducing Kernels" 14553:https://arxiv.org/abs/1106.6251 14532: 14523: 14514: 14505: 14496: 10897:The squared norm of a function 10873: 10775: 10568: 10032: 9919: 9646:{\displaystyle X_{0}\subset X,} 8313: 6548:so that its inner product with 5401: 5395: 4860:, although he attributes it to 3424:. As the inner product, we use 1716: 1635:with the reproducing property, 1278: 14481: 14472: 14463: 14454: 14445: 14436: 14423: 14410: 14401: 14336: 14324: 14306: 14294: 14276: 14264: 14238: 14226: 14220: 14208: 14153: 14141: 14102: 14090: 14016: 14004: 13980: 13974: 13958: 13946: 13914: 13908: 13889: 13877: 13868: 13862: 13774: 13762: 13701: 13695: 13684: 13672: 13641: 13635: 13606: 13600: 13568: 13562: 13539: 13527: 13478: 13472: 13461: 13455: 13349: 13343: 13320: 13308: 13305: 13299: 13229: 13223: 13090: 13078: 13065: 13053: 13044: 13041: 13029: 13023: 13011: 13008: 12759: 12753: 12741: 12729: 12726: 12717: 12684: 12636: 12633: 12621: 12615: 12603: 12600: 12589: 12577: 12573: 12560: 12512: 12500: 12494: 12482: 12461: 12458: 12446: 12440: 12428: 12425: 12416: 12404: 12399: 12387: 12333: 12321: 12269: 12035: 12028: 11941: 11929: 11920: 11914: 11806: 11685: 11673: 11665: 11653: 11635: 11623: 11574: 11566: 11521: 11498: 11476: 11464: 11438: 11430: 11370: 11362: 11308:{\displaystyle X=\mathbb {D} } 11185: 11173: 11147: 11135: 11039: 11032: 11009: 11002: 10830: 10818: 10713: 10701: 10663: 10645: 10636: 10624: 10556: 10528: 10522: 10510: 10404: 10398: 10334: 10322: 10213: 10201: 10146: 10134: 10023: 10011: 10005: 9993: 9978: 9965: 9916: 9913: 9901: 9889: 9836: 9824: 9758: 9746: 9541: 9515: 9499: 9473: 9457: 9454: 9422: 9416: 9384: 9381: 9334: 9320: 9283: 9269: 9232: 9218: 9172: 9166: 9157: 9151: 9139: 9127: 9038: 9032: 9014: 9008: 8860: 8854: 8836: 8830: 8801: 8721: 8717: 8711: 8684: 8678: 8672: 8571: 8565: 8438: 8432: 8423: 8417: 8405: 8393: 8338: 7994: 7988: 7861: 7855: 7841: 7835: 7787: 7775: 7743: 7677: 7671: 7657: 7651: 7603: 7591: 7522: 7516: 7480: 7474: 7355: 7349: 7286: 7280: 7254: 7248: 7187: 7147: 7133: 6942: 6936: 6903: 6897: 6887: 6881: 6875: 6863: 6844: 6838: 6835: 6819: 6796: 6790: 6777: 6774: 6768: 6720: 6498: 6492: 6281: 6275: 5844: 5832: 5735: 5729: 5720: 5701: 5495: 5436: 5410: 5392: 5386: 5332: 5326: 5220: 5208: 5179: 5153: 4943:}. Define an inner product on 4811: 4799: 4776: 4770: 4701: 4695: 4660: 4654: 4599: 4593: 4574: 4568: 4490:which is a consequence of the 4445: 4430: 4358: 4352: 4301: 4295: 4256: 4244: 4236: 4233: 4221: 4215: 4195: 4183: 4146: 4140: 3997: 3992: 3986: 3979: 3916: 3911: 3905: 3898: 3849: 3845: 3839: 3832: 3751: 3745: 3703: 3697: 3568: 3560: 3511: 3505: 3493: 3487: 3361: 3355: 3328: 3322: 3299: 3291: 3255: 3240: 3234: 3228: 3216: 3208: 3098:{\displaystyle \{x\}\subset X} 2939: 2927: 2714: 2661: 2415: 2389: 2285: 2202: 2190: 2137: 1951: 1938: 1922: 1916: 1678: 1672: 1656: 1650: 1588:there exists a unique element 1244: 1240: 1234: 1227: 1219: 1215: 1209: 1195: 943: 937: 931: 583: 560: 554: 513: 509: 503: 494: 488: 481: 270: 264: 13: 1: 14635:10.1090/S0273-0979-01-00923-5 14545: 12854:{\displaystyle t^{\text{th}}} 10609:Radial basis function kernels 10159:will be closer to 1 while if 9716:Consider a normalized kernel 9713:is also a reproducing kernel. 9202: 8306:for stochastic processes and 8304:Karhunen-Loève representation 7332:form an orthonormal basis of 6575:{\displaystyle f_{H^{\bot }}} 4858:Theory of Reproducing Kernels 3173:and define the Hilbert space 2945:{\displaystyle L^{2}(X,\mu )} 784: 566:{\displaystyle \sin ^{2n}(x)} 14695:10.1016/0022-247X(71)90184-3 13368:and square integrable (i.e. 11515: 11406:{\displaystyle \mathbb {D} } 11330:{\displaystyle \mathbb {D} } 11090:We also provide examples of 9207:Useful properties of RKHSs: 9110:{\displaystyle H_{\varphi }} 8932:{\displaystyle H_{\varphi }} 4817:{\displaystyle \delta (y-x)} 4603: 3662:{\displaystyle \mathbb {R} } 3627:. In fact, the elements of 3616:{\displaystyle \mathbb {R} } 3515: 2318:{\displaystyle \mathbb {C} } 2170:{\displaystyle \mathbb {C} } 1842:{\displaystyle \mathbb {C} } 1820:{\displaystyle \mathbb {R} } 1546:Riesz representation theorem 592:{\displaystyle n\to \infty } 135:{\displaystyle \mathbb {C} } 113:{\displaystyle \mathbb {R} } 7: 14362: 12957:{\displaystyle H_{\gamma }} 12930:{\displaystyle H_{\Gamma }} 12657: 12543: 12296: 11125:and 0 everywhere else, and 10233:The closure of the span of 8655:{\displaystyle F=\ell ^{2}} 8625: 8522: 8470: 8110:where the inner product of 6254:is a reproducing kernel of 5776: 5533: 2905: 1748: 1428: 1311: 771:empirical risk minimization 759:statistical learning theory 168:, there exists a function 142:) is an RKHS if, for each 10: 14825: 14420:, vol. 15, Issue 1, 1992. 10685:squared exponential kernel 9262:be a sequence of sets and 7558:Then by Mercer's theorem 6170:{\displaystyle f_{H}\in H} 6030:{\displaystyle H\subset G} 4314:defined above is given by 2038:{\displaystyle K_{y}\in H} 1175:{\displaystyle M_{x}>0} 761:because of the celebrated 194:{\displaystyle K_{x}\in H} 14739:10.1007/s00365-012-9153-3 10676:. Some examples include: 9951:Cauchy–Schwarz inequality 7072:. This then implies that 6623:and concludes the proof. 6586:is zero. This shows that 6041:is complete and contains 5754:To prove uniqueness, let 4278:The Fourier transform of 4120:in this case is given by 3795:Cauchy–Schwarz inequality 3682:Fourier inversion theorem 3042:, the reproducing kernel 1805:with values in the field 1149:, i.e. there exists some 78:of functions from a set 14394: 14369:Positive definite kernel 10184:{\displaystyle x,y\in X} 10117:{\displaystyle x,y\in X} 9770:{\displaystyle K(x,x)=1} 9653:then the restriction of 8912:We can define a norm on 7718:{\displaystyle x,y\in X} 7361:{\displaystyle L_{2}(X)} 7095:Under these assumptions 6948:{\displaystyle L_{2}(X)} 6087:is a closed subspace of 4891:is a reproducing kernel. 4877:positive definite kernel 4782:{\displaystyle K_{x}(y)} 4307:{\displaystyle K_{x}(y)} 3647:are the restrictions to 3601:are smooth functions on 2177:in the complex case) by 718:simultaneously examined 13213:is commonly defined as 12474:for every set of pairs 11733:{\displaystyle \Gamma } 11718:manifold regularization 7437:One can also show that 7368:. By the positivity of 6612:{\displaystyle f=f_{H}} 4928:be the linear span of { 4848:Moore–Aronszajn theorem 3793:It then follows by the 704:boundary value problems 423:{\displaystyle \|f-g\|} 355:via the inner product. 14346: 14245: 14180: 14160: 14109: 13927: 13833: 13740: 13581: 13580:{\displaystyle f(0)=0} 13546: 13495: 13389: 13362: 13361:{\displaystyle f(0)=0} 13327: 13257: 13192: 13172: 13146: 13126: 13097: 12989: 12958: 12931: 12904: 12884: 12855: 12828: 12798: 12701: 12646: 12531: 12468: 12369: 12284: 12224: 12204:. Consider the space 12198: 12147: 12127: 12054: 11971: 11886: 11885:{\displaystyle x\in X} 11860: 11825: 11784: 11764: 11734: 11698: 11604: 11581: 11540: 11445: 11407: 11377: 11331: 11309: 11278: 11242: 11154: 11153:{\displaystyle K(x,y)} 11106:. Then an element of 11070: 10931: 10911: 10887: 10789: 10670: 10598: 10486: 10429: 10382: 10359: 10292: 10272: 10220: 10219:{\displaystyle K(x,y)} 10185: 10153: 10152:{\displaystyle K(x,y)} 10118: 10082: 10058: 9939: 9797: 9796:{\displaystyle x\in X} 9771: 9730: 9707: 9667: 9647: 9607: 9548: 9361: 9307: 9256: 9189: 9111: 9081: 8933: 8903: 8757: 8734: 8656: 8617: 8616:{\displaystyle x\in X} 8591: 8549: 8514: 8494: 8458: 8368: 8348: 8293: 8189: 8124: 8101: 8026: 7945: 7925: 7902: 7879: 7813: 7719: 7684: 7629: 7572: 7552: 7529: 7487: 7458: 7431: 7408: 7362: 7326: 7293: 7215: 7166: 7116: 7086: 7066: 7039: 7019: 6999: 6969: 6949: 6910: 6803: 6732: 6692: 6669: 6645: 6613: 6576: 6538: 6508: 6244: 6243:{\displaystyle x\in X} 6218: 6171: 6138: 6073: 6031: 6005: 5960: 5893: 5745: 5687: 5599: 5522: 5466: 5358: 5291:is positive definite. 5277: 5189: 5127: 5106: 5037: 4986: 4838: 4818: 4783: 4743: 4711: 4494:. Consequently, using 4481: 4308: 4269: 4114: 4084: 4061: 3815: 3784: 3663: 3641: 3625:Riemann-Lebesgue lemma 3617: 3595: 3575: 3534: 3418: 3394: 3306: 3265: 3167: 3132: 3099: 3063: 3036: 3035:{\displaystyle x\in X} 3010: 2986: 2966: 2946: 2896: 2876: 2856: 2739: 2685: 2617: 2566: 2498: 2441: 2365: 2319: 2297: 2254: 2171: 2149: 2109: 2086: 2059: 2039: 2003: 1890: 1870: 1843: 1821: 1799: 1779: 1736: 1629: 1609: 1582: 1562: 1538: 1524:for the Hilbert space 1514: 1494: 1467: 1446: 1417: 1374: 1373:{\displaystyle x\in X} 1348: 1299: 1176: 1143: 1119: 1092: 1072: 1048: 1021: 1001: 970: 899: 879: 855: 827: 803: 685: 665: 638: 593: 567: 521: 464: 444: 424: 392: 372: 349: 329: 309: 280: 221: 220:{\displaystyle f\in H} 195: 162: 161:{\displaystyle x\in X} 136: 114: 92: 72: 35: 14347: 14246: 14181: 14161: 14110: 13928: 13834: 13741: 13582: 13547: 13496: 13390: 13388:{\displaystyle L_{2}} 13363: 13328: 13258: 13193: 13173: 13147: 13127: 13098: 12990: 12959: 12932: 12905: 12885: 12856: 12829: 12827:{\displaystyle e_{t}} 12799: 12702: 12647: 12532: 12469: 12370: 12285: 12225: 12199: 12148: 12128: 12055: 11972: 11887: 11861: 11826: 11785: 11765: 11735: 11699: 11605: 11582: 11541: 11446: 11408: 11389:holomorphic functions 11378: 11332: 11310: 11279: 11243: 11155: 11071: 10937:with this kernel is: 10932: 10912: 10888: 10790: 10671: 10599: 10487: 10430: 10383: 10360: 10293: 10273: 10221: 10186: 10154: 10119: 10090:measure of similarity 10083: 10059: 9940: 9798: 9772: 9731: 9708: 9668: 9648: 9608: 9549: 9367:It then follows that 9362: 9308: 9257: 9199:in machine learning. 9190: 9112: 9090:It can be shown that 9082: 8934: 8904: 8758: 8735: 8657: 8618: 8592: 8550: 8515: 8495: 8459: 8369: 8349: 8294: 8169: 8125: 8102: 8006: 7946: 7926: 7903: 7880: 7793: 7720: 7685: 7609: 7573: 7553: 7530: 7488: 7459: 7457:{\displaystyle T_{K}} 7432: 7409: 7363: 7327: 7294: 7216: 7167: 7117: 7115:{\displaystyle T_{K}} 7087: 7067: 7065:{\displaystyle T_{K}} 7040: 7020: 7000: 6998:{\displaystyle T_{K}} 6970: 6950: 6911: 6804: 6733: 6693: 6670: 6646: 6614: 6577: 6539: 6537:{\displaystyle K_{x}} 6509: 6245: 6219: 6172: 6139: 6074: 6032: 6006: 5961: 5894: 5746: 5667: 5579: 5523: 5440: 5338: 5278: 5190: 5107: 5086: 5017: 4966: 4839: 4819: 4784: 4744: 4742:{\displaystyle K_{x}} 4712: 4482: 4309: 4270: 4115: 4113:{\displaystyle K_{x}} 4085: 4062: 3816: 3785: 3671:holomorphic functions 3664: 3642: 3618: 3596: 3576: 3535: 3419: 3395: 3307: 3266: 3168: 3133: 3100: 3073:of the one point set 3064: 3062:{\displaystyle K_{x}} 3037: 3011: 2987: 2967: 2947: 2897: 2877: 2857: 2740: 2665: 2597: 2546: 2478: 2421: 2339: 2320: 2298: 2255: 2172: 2150: 2110: 2087: 2085:{\displaystyle L_{y}} 2060: 2040: 2004: 1891: 1871: 1869:{\displaystyle K_{x}} 1844: 1822: 1800: 1780: 1778:{\displaystyle K_{x}} 1737: 1630: 1610: 1608:{\displaystyle K_{x}} 1583: 1563: 1548:implies that for all 1539: 1515: 1495: 1493:{\displaystyle K_{x}} 1468: 1447: 1418: 1375: 1349: 1300: 1177: 1144: 1120: 1118:{\displaystyle L_{x}} 1098:or, equivalently, if 1093: 1073: 1049: 1047:{\displaystyle L_{x}} 1022: 1002: 971: 900: 880: 856: 839:real-valued functions 828: 804: 686: 666: 639: 637:{\displaystyle K_{0}} 594: 568: 522: 465: 445: 425: 393: 373: 350: 330: 310: 308:{\displaystyle K_{x}} 281: 222: 196: 163: 137: 115: 93: 73: 33: 14258: 14193: 14170: 14122: 13940: 13846: 13756: 13594: 13556: 13508: 13402: 13372: 13337: 13271: 13217: 13182: 13156: 13136: 13110: 13002: 12979: 12941: 12914: 12894: 12890:, one can show that 12865: 12838: 12811: 12714: 12665: 12554: 12479: 12379: 12310: 12239: 12208: 12164: 12137: 12068: 11987: 11898: 11870: 11835: 11794: 11774: 11748: 11724: 11617: 11591: 11553: 11458: 11417: 11395: 11349: 11319: 11291: 11259: 11167: 11129: 10943: 10921: 10901: 10812: 10695: 10618: 10504: 10439: 10392: 10372: 10316: 10282: 10237: 10226:will be closer to 0. 10195: 10191:are dissimilar then 10163: 10128: 10096: 10072: 9959: 9811: 9781: 9740: 9720: 9677: 9657: 9621: 9562: 9375: 9317: 9266: 9215: 9121: 9094: 8946: 8916: 8773: 8747: 8666: 8633: 8601: 8559: 8533: 8504: 8484: 8387: 8358: 8326: 8137: 8114: 7958: 7935: 7915: 7892: 7732: 7697: 7585: 7562: 7539: 7497: 7486:{\displaystyle C(X)} 7468: 7441: 7418: 7372: 7336: 7303: 7225: 7176: 7130: 7099: 7076: 7049: 7029: 7009: 6982: 6968:{\displaystyle \mu } 6959: 6923: 6816: 6742: 6702: 6691:{\displaystyle \mu } 6682: 6659: 6635: 6590: 6552: 6521: 6269: 6228: 6181: 6148: 6095: 6063: 6015: 5970: 5906: 5787: 5544: 5320: 5202: 4957: 4828: 4793: 4757: 4751:Dirac delta function 4726: 4505: 4496:Plancherel's theorem 4321: 4282: 4127: 4097: 4093:The kernel function 4074: 3828: 3805: 3799:Plancherel's theorem 3691: 3675:Paley–Wiener theorem 3651: 3631: 3605: 3585: 3547: 3431: 3408: 3316: 3278: 3180: 3145: 3122: 3117:continuous functions 3077: 3046: 3020: 3000: 2985:{\displaystyle \mu } 2976: 2956: 2914: 2886: 2866: 2752: 2336: 2307: 2267: 2184: 2159: 2119: 2099: 2069: 2049: 2016: 1903: 1880: 1853: 1831: 1809: 1789: 1762: 1644: 1619: 1592: 1572: 1552: 1528: 1504: 1477: 1457: 1436: 1384: 1358: 1325: 1191: 1153: 1133: 1102: 1082: 1062: 1031: 1011: 991: 912: 889: 869: 845: 817: 793: 742:and Stefan Bergman. 712:biharmonic functions 675: 655: 621: 577: 535: 474: 454: 434: 402: 382: 362: 339: 319: 292: 233: 205: 172: 146: 124: 102: 82: 62: 14669:Kimeldorf, George; 14389:Representer theorem 14357:representer theorem 14000: 13861: 13668: 13626: 13446: 13298: 13171:{\displaystyle t,s} 13125:{\displaystyle x,y} 11763:{\displaystyle x,y} 11714:multi-task learning 10966: 10462: 10092:between inputs. If 9882: 9353: 9302: 9251: 8548:{\displaystyle F=H} 8073: 4844:tends to infinity. 4650: 4564: 4341: 3977: 3896: 3741: 3483: 3351: 2728: 1354:is assumed for all 763:representer theorem 201:such that for all 40:functional analysis 14560:Aronszajn, Nachman 14342: 14241: 14176: 14156: 14105: 14079: 13986: 13923: 13849: 13829: 13824: 13736: 13654: 13612: 13577: 13542: 13491: 13432: 13385: 13358: 13323: 13284: 13253: 13188: 13168: 13142: 13122: 13093: 12985: 12954: 12927: 12900: 12880: 12851: 12824: 12794: 12697: 12642: 12527: 12464: 12365: 12280: 12220: 12194: 12143: 12123: 12050: 11967: 11882: 11856: 11831:such that for all 11821: 11780: 11760: 11730: 11694: 11603:{\displaystyle 2a} 11600: 11577: 11536: 11441: 11403: 11373: 11327: 11305: 11274: 11238: 11233: 11150: 11098:be finite and let 11066: 10952: 10927: 10907: 10883: 10785: 10666: 10594: 10496:Polynomial kernels 10482: 10448: 10425: 10378: 10355: 10288: 10268: 10216: 10181: 10149: 10114: 10078: 10054: 9935: 9868: 9793: 9767: 9726: 9703: 9663: 9643: 9603: 9544: 9357: 9333: 9303: 9282: 9252: 9231: 9185: 9107: 9077: 8929: 8899: 8753: 8730: 8652: 8613: 8587: 8545: 8510: 8490: 8454: 8364: 8344: 8289: 8120: 8097: 8029: 7941: 7921: 7898: 7875: 7766: 7750: 7715: 7680: 7568: 7551:{\displaystyle i.} 7548: 7525: 7483: 7454: 7430:{\displaystyle i.} 7427: 7404: 7358: 7322: 7289: 7211: 7194: 7162: 7112: 7082: 7062: 7035: 7015: 6995: 6965: 6945: 6906: 6799: 6728: 6688: 6665: 6641: 6609: 6572: 6534: 6504: 6240: 6214: 6167: 6134: 6069: 6027: 6001: 5956: 5889: 5741: 5518: 5433: 5417: 5273: 5185: 4834: 4814: 4779: 4739: 4707: 4633: 4547: 4477: 4472: 4324: 4304: 4265: 4110: 4090:is indeed a RKHS. 4080: 4057: 3960: 3879: 3811: 3780: 3724: 3659: 3637: 3613: 3591: 3571: 3530: 3466: 3414: 3390: 3334: 3302: 3261: 3163: 3128: 3110:analytic functions 3095: 3071:indicator function 3059: 3032: 3006: 2982: 2962: 2942: 2892: 2872: 2852: 2735: 2659: 2315: 2293: 2250: 2167: 2145: 2105: 2082: 2055: 2045:is the element in 2035: 1999: 1886: 1866: 1839: 1817: 1795: 1775: 1732: 1625: 1605: 1578: 1558: 1534: 1522:reproducing kernel 1510: 1490: 1463: 1442: 1413: 1396: 1370: 1344: 1295: 1172: 1139: 1115: 1088: 1068: 1044: 1017: 997: 966: 895: 875: 851: 823: 799: 779:analytic functions 767:linear combination 724:integral equations 693:reproducing kernel 681: 661: 634: 589: 563: 517: 460: 440: 420: 388: 368: 345: 325: 305: 276: 217: 191: 158: 132: 110: 88: 68: 36: 18:Reproducing kernel 14179:{\displaystyle f} 14075: 13897: 13820: 13191:{\displaystyle T} 13145:{\displaystyle X} 12988:{\displaystyle T} 12903:{\displaystyle D} 12848: 12304: 12303: 12146:{\displaystyle H} 11956: 11783:{\displaystyle X} 11689: 11531: 11518: 11490: 11386:square-integrable 11255:is isomorphic to 10997: 10930:{\displaystyle H} 10910:{\displaystyle f} 10866: 10768: 10381:{\displaystyle H} 10291:{\displaystyle H} 10124:are similar then 10081:{\displaystyle K} 9729:{\displaystyle K} 9666:{\displaystyle K} 9060: 8882: 8756:{\displaystyle H} 8699: 8513:{\displaystyle F} 8493:{\displaystyle K} 8478: 8477: 8367:{\displaystyle F} 8284: 8123:{\displaystyle H} 8084: 7944:{\displaystyle K} 7924:{\displaystyle H} 7901:{\displaystyle K} 7751: 7735: 7571:{\displaystyle K} 7179: 7085:{\displaystyle K} 7038:{\displaystyle K} 7018:{\displaystyle K} 6668:{\displaystyle X} 6644:{\displaystyle K} 6079:be an element of 6072:{\displaystyle f} 5418: 5402: 5399: 4854:positive definite 4837:{\displaystyle a} 4631: 4606: 4464: 4422: 4260: 4181: 4160: 4083:{\displaystyle H} 4029: 4028: 4014: 3956: 3947: 3933: 3869: 3814:{\displaystyle x} 3722: 3640:{\displaystyle H} 3594:{\displaystyle H} 3518: 3417:{\displaystyle f} 3402:Fourier transform 3131:{\displaystyle H} 3009:{\displaystyle X} 2965:{\displaystyle X} 2895:{\displaystyle X} 2875:{\displaystyle K} 2810: 2327:positive definite 2226: 2108:{\displaystyle H} 2058:{\displaystyle H} 1975: 1889:{\displaystyle H} 1798:{\displaystyle X} 1756: 1755: 1695: 1628:{\displaystyle H} 1581:{\displaystyle X} 1561:{\displaystyle x} 1537:{\displaystyle H} 1513:{\displaystyle H} 1466:{\displaystyle f} 1445:{\displaystyle H} 1387: 1319: 1318: 1142:{\displaystyle H} 1091:{\displaystyle H} 1071:{\displaystyle f} 1020:{\displaystyle X} 1000:{\displaystyle x} 949: 898:{\displaystyle x} 878:{\displaystyle H} 854:{\displaystyle X} 826:{\displaystyle H} 802:{\displaystyle X} 755:quantum mechanics 751:harmonic analysis 740:Nachman Aronszajn 700:Stanisław Zaremba 684:{\displaystyle x} 664:{\displaystyle x} 601:parallelogram law 463:{\displaystyle g} 443:{\displaystyle f} 430:is small), then 391:{\displaystyle g} 371:{\displaystyle f} 348:{\displaystyle x} 328:{\displaystyle f} 91:{\displaystyle X} 71:{\displaystyle H} 16:(Redirected from 14816: 14795: 14785: 14758: 14707: 14697: 14679: 14665:, February 2010. 14647: 14637: 14603: 14585: 14539: 14536: 14530: 14527: 14521: 14518: 14512: 14509: 14503: 14500: 14494: 14485: 14479: 14476: 14470: 14467: 14461: 14458: 14452: 14449: 14443: 14440: 14434: 14427: 14421: 14414: 14408: 14405: 14374:Mercer's theorem 14351: 14349: 14348: 14343: 14250: 14248: 14247: 14242: 14185: 14183: 14182: 14177: 14165: 14163: 14162: 14157: 14134: 14133: 14114: 14112: 14111: 14106: 14083: 14082: 14076: 14073: 13999: 13994: 13973: 13972: 13932: 13930: 13929: 13924: 13907: 13906: 13895: 13857: 13838: 13836: 13835: 13830: 13828: 13827: 13821: 13818: 13745: 13743: 13742: 13737: 13726: 13725: 13694: 13667: 13662: 13634: 13625: 13620: 13586: 13584: 13583: 13578: 13551: 13549: 13548: 13543: 13526: 13525: 13500: 13498: 13497: 13492: 13471: 13454: 13445: 13440: 13428: 13427: 13426: 13394: 13392: 13391: 13386: 13384: 13383: 13367: 13365: 13364: 13359: 13332: 13330: 13329: 13324: 13297: 13292: 13280: 13279: 13262: 13260: 13259: 13254: 13197: 13195: 13194: 13189: 13177: 13175: 13174: 13169: 13151: 13149: 13148: 13143: 13131: 13129: 13128: 13123: 13102: 13100: 13099: 13094: 13077: 13076: 12994: 12992: 12991: 12986: 12963: 12961: 12960: 12955: 12953: 12952: 12936: 12934: 12933: 12928: 12926: 12925: 12909: 12907: 12906: 12901: 12889: 12887: 12886: 12881: 12879: 12878: 12873: 12860: 12858: 12857: 12852: 12850: 12849: 12846: 12833: 12831: 12830: 12825: 12823: 12822: 12803: 12801: 12800: 12795: 12793: 12792: 12791: 12790: 12785: 12774: 12773: 12706: 12704: 12703: 12698: 12696: 12695: 12683: 12682: 12651: 12649: 12648: 12643: 12593: 12592: 12538: 12536: 12534: 12533: 12528: 12473: 12471: 12470: 12465: 12403: 12402: 12374: 12372: 12371: 12366: 12337: 12336: 12298: 12289: 12287: 12286: 12281: 12276: 12233: 12229: 12227: 12226: 12221: 12203: 12201: 12200: 12195: 12152: 12150: 12149: 12144: 12132: 12130: 12129: 12124: 12119: 12118: 12113: 12083: 12082: 12059: 12057: 12056: 12051: 12043: 12042: 12021: 12020: 12008: 12007: 11976: 11974: 11973: 11968: 11957: 11954: 11910: 11909: 11891: 11889: 11888: 11883: 11865: 11863: 11862: 11857: 11855: 11854: 11849: 11830: 11828: 11827: 11822: 11820: 11819: 11814: 11789: 11787: 11786: 11781: 11769: 11767: 11766: 11761: 11739: 11737: 11736: 11731: 11703: 11701: 11700: 11695: 11690: 11688: 11668: 11642: 11609: 11607: 11606: 11601: 11586: 11584: 11583: 11578: 11573: 11565: 11564: 11545: 11543: 11542: 11537: 11532: 11530: 11529: 11528: 11519: 11511: 11493: 11491: 11483: 11450: 11448: 11447: 11442: 11437: 11429: 11428: 11412: 11410: 11409: 11404: 11402: 11384:is the space of 11382: 11380: 11379: 11374: 11369: 11361: 11360: 11336: 11334: 11333: 11328: 11326: 11314: 11312: 11311: 11306: 11304: 11283: 11281: 11280: 11275: 11273: 11272: 11267: 11247: 11245: 11244: 11239: 11237: 11236: 11159: 11157: 11156: 11151: 11075: 11073: 11072: 11067: 11059: 11054: 11053: 11047: 11046: 11031: 11017: 11016: 10998: 10990: 10988: 10987: 10981: 10980: 10979: 10965: 10960: 10936: 10934: 10933: 10928: 10916: 10914: 10913: 10908: 10892: 10890: 10889: 10884: 10869: 10868: 10867: 10862: 10845: 10802:Laplacian kernel 10794: 10792: 10791: 10786: 10771: 10770: 10769: 10767: 10766: 10765: 10752: 10751: 10750: 10728: 10675: 10673: 10672: 10667: 10603: 10601: 10600: 10595: 10593: 10579: 10564: 10563: 10491: 10489: 10488: 10483: 10481: 10480: 10461: 10456: 10434: 10432: 10431: 10426: 10387: 10385: 10384: 10379: 10364: 10362: 10361: 10356: 10308:Bilinear kernels 10297: 10295: 10294: 10289: 10277: 10275: 10274: 10269: 10252: 10251: 10225: 10223: 10222: 10217: 10190: 10188: 10187: 10182: 10158: 10156: 10155: 10150: 10123: 10121: 10120: 10115: 10087: 10085: 10084: 10079: 10063: 10061: 10060: 10055: 9986: 9985: 9944: 9942: 9941: 9936: 9881: 9876: 9867: 9866: 9854: 9853: 9823: 9822: 9802: 9800: 9799: 9794: 9776: 9774: 9773: 9768: 9735: 9733: 9732: 9727: 9712: 9710: 9709: 9704: 9702: 9701: 9689: 9688: 9672: 9670: 9669: 9664: 9652: 9650: 9649: 9644: 9633: 9632: 9612: 9610: 9609: 9604: 9599: 9598: 9580: 9579: 9553: 9551: 9550: 9545: 9540: 9539: 9527: 9526: 9514: 9513: 9498: 9497: 9485: 9484: 9472: 9471: 9453: 9452: 9434: 9433: 9415: 9414: 9396: 9395: 9366: 9364: 9363: 9358: 9352: 9347: 9332: 9331: 9312: 9310: 9309: 9304: 9301: 9296: 9281: 9280: 9261: 9259: 9258: 9253: 9250: 9245: 9230: 9229: 9194: 9192: 9191: 9186: 9184: 9183: 9116: 9114: 9113: 9108: 9106: 9105: 9086: 9084: 9083: 9078: 9061: 9058: 9050: 9049: 8989: 8988: 8964: 8963: 8938: 8936: 8935: 8930: 8928: 8927: 8908: 8906: 8905: 8900: 8883: 8880: 8872: 8871: 8808: 8785: 8784: 8762: 8760: 8759: 8754: 8739: 8737: 8736: 8731: 8729: 8728: 8710: 8709: 8700: 8698: 8697: 8688: 8661: 8659: 8658: 8653: 8651: 8650: 8622: 8620: 8619: 8614: 8596: 8594: 8593: 8588: 8586: 8585: 8554: 8552: 8551: 8546: 8519: 8517: 8516: 8511: 8499: 8497: 8496: 8491: 8472: 8463: 8461: 8460: 8455: 8450: 8449: 8381: 8373: 8371: 8370: 8365: 8353: 8351: 8350: 8345: 8298: 8296: 8295: 8290: 8285: 8283: 8282: 8273: 8272: 8271: 8270: 8269: 8259: 8255: 8254: 8253: 8232: 8231: 8230: 8229: 8219: 8215: 8214: 8213: 8191: 8188: 8183: 8165: 8164: 8159: 8155: 8129: 8127: 8126: 8121: 8106: 8104: 8103: 8098: 8096: 8092: 8085: 8083: 8082: 8072: 8067: 8066: 8065: 8055: 8051: 8050: 8049: 8028: 8025: 8020: 8004: 8003: 7987: 7986: 7950: 7948: 7947: 7942: 7930: 7928: 7927: 7922: 7907: 7905: 7904: 7899: 7884: 7882: 7881: 7876: 7868: 7864: 7854: 7853: 7834: 7833: 7823: 7822: 7812: 7807: 7765: 7749: 7724: 7722: 7721: 7716: 7689: 7687: 7686: 7681: 7670: 7669: 7650: 7649: 7639: 7638: 7628: 7623: 7577: 7575: 7574: 7569: 7557: 7555: 7554: 7549: 7534: 7532: 7531: 7526: 7509: 7508: 7492: 7490: 7489: 7484: 7463: 7461: 7460: 7455: 7453: 7452: 7436: 7434: 7433: 7428: 7413: 7411: 7410: 7405: 7397: 7396: 7384: 7383: 7367: 7365: 7364: 7359: 7348: 7347: 7331: 7329: 7328: 7323: 7318: 7317: 7298: 7296: 7295: 7290: 7279: 7278: 7269: 7268: 7247: 7246: 7237: 7236: 7220: 7218: 7217: 7212: 7204: 7203: 7193: 7171: 7169: 7168: 7163: 7155: 7154: 7145: 7144: 7124:spectral theorem 7121: 7119: 7118: 7113: 7111: 7110: 7091: 7089: 7088: 7083: 7071: 7069: 7068: 7063: 7061: 7060: 7044: 7042: 7041: 7036: 7024: 7022: 7021: 7016: 7004: 7002: 7001: 6996: 6994: 6993: 6974: 6972: 6971: 6966: 6954: 6952: 6951: 6946: 6935: 6934: 6915: 6913: 6912: 6907: 6859: 6858: 6831: 6830: 6808: 6806: 6805: 6800: 6789: 6788: 6767: 6766: 6754: 6753: 6737: 6735: 6734: 6729: 6727: 6697: 6695: 6694: 6689: 6674: 6672: 6671: 6666: 6653:Mercer's theorem 6650: 6648: 6647: 6642: 6618: 6616: 6615: 6610: 6608: 6607: 6581: 6579: 6578: 6573: 6571: 6570: 6569: 6568: 6543: 6541: 6540: 6535: 6533: 6532: 6513: 6511: 6510: 6505: 6491: 6490: 6478: 6477: 6468: 6467: 6455: 6454: 6439: 6438: 6429: 6428: 6416: 6415: 6400: 6399: 6390: 6389: 6388: 6387: 6370: 6369: 6354: 6353: 6344: 6343: 6331: 6330: 6315: 6314: 6299: 6298: 6249: 6247: 6246: 6241: 6223: 6221: 6220: 6215: 6213: 6212: 6200: 6199: 6198: 6197: 6176: 6174: 6173: 6168: 6160: 6159: 6143: 6141: 6140: 6135: 6133: 6132: 6131: 6130: 6113: 6112: 6078: 6076: 6075: 6070: 6036: 6034: 6033: 6028: 6010: 6008: 6007: 6002: 5985: 5984: 5965: 5963: 5962: 5957: 5955: 5954: 5930: 5929: 5898: 5896: 5895: 5890: 5885: 5884: 5875: 5874: 5862: 5861: 5825: 5824: 5815: 5814: 5802: 5801: 5750: 5748: 5747: 5742: 5713: 5712: 5697: 5696: 5686: 5681: 5663: 5662: 5661: 5660: 5650: 5646: 5645: 5644: 5632: 5631: 5630: 5629: 5609: 5608: 5598: 5593: 5575: 5574: 5565: 5564: 5527: 5525: 5524: 5519: 5511: 5510: 5509: 5508: 5498: 5494: 5493: 5492: 5491: 5490: 5476: 5475: 5465: 5454: 5432: 5416: 5400: 5397: 5385: 5384: 5383: 5382: 5368: 5367: 5357: 5352: 5282: 5280: 5279: 5274: 5272: 5271: 5270: 5269: 5259: 5255: 5254: 5253: 5241: 5240: 5194: 5192: 5191: 5186: 5178: 5177: 5165: 5164: 5149: 5148: 5139: 5138: 5137: 5126: 5121: 5105: 5100: 5082: 5081: 5080: 5079: 5069: 5065: 5064: 5063: 5062: 5061: 5047: 5046: 5036: 5031: 5013: 5012: 5011: 5010: 4996: 4995: 4985: 4980: 4875:is a symmetric, 4843: 4841: 4840: 4835: 4823: 4821: 4820: 4815: 4788: 4786: 4785: 4780: 4769: 4768: 4748: 4746: 4745: 4740: 4738: 4737: 4716: 4714: 4713: 4708: 4681: 4680: 4649: 4644: 4632: 4630: 4619: 4607: 4602: 4592: 4591: 4581: 4563: 4558: 4543: 4542: 4541: 4540: 4526: 4525: 4486: 4484: 4483: 4478: 4476: 4475: 4466: 4465: 4462: 4423: 4420: 4416: 4415: 4379: 4378: 4351: 4350: 4340: 4335: 4313: 4311: 4310: 4305: 4294: 4293: 4274: 4272: 4271: 4266: 4261: 4259: 4239: 4207: 4202: 4198: 4182: 4174: 4161: 4153: 4139: 4138: 4119: 4117: 4116: 4111: 4109: 4108: 4089: 4087: 4086: 4081: 4066: 4064: 4063: 4058: 4053: 4052: 4051: 4050: 4030: 4021: 4020: 4015: 4006: 4005: 4000: 3982: 3976: 3971: 3959: 3957: 3955: 3940: 3939: 3934: 3925: 3924: 3919: 3901: 3895: 3890: 3872: 3870: 3868: 3857: 3852: 3835: 3820: 3818: 3817: 3812: 3789: 3787: 3786: 3781: 3769: 3768: 3740: 3735: 3723: 3721: 3710: 3668: 3666: 3665: 3660: 3658: 3646: 3644: 3643: 3638: 3622: 3620: 3619: 3614: 3612: 3600: 3598: 3597: 3592: 3580: 3578: 3577: 3572: 3567: 3559: 3558: 3539: 3537: 3536: 3531: 3519: 3514: 3500: 3482: 3477: 3462: 3461: 3460: 3459: 3423: 3421: 3420: 3415: 3399: 3397: 3396: 3391: 3382: 3381: 3350: 3345: 3311: 3309: 3308: 3303: 3298: 3290: 3289: 3270: 3268: 3267: 3262: 3215: 3207: 3206: 3172: 3170: 3169: 3164: 3140:cutoff frequency 3137: 3135: 3134: 3129: 3104: 3102: 3101: 3096: 3068: 3066: 3065: 3060: 3058: 3057: 3041: 3039: 3038: 3033: 3015: 3013: 3012: 3007: 2994:counting measure 2991: 2989: 2988: 2983: 2971: 2969: 2968: 2963: 2951: 2949: 2948: 2943: 2926: 2925: 2901: 2899: 2898: 2893: 2881: 2879: 2878: 2873: 2861: 2859: 2858: 2853: 2848: 2840: 2839: 2821: 2820: 2811: 2808: 2797: 2796: 2778: 2777: 2765: 2744: 2742: 2741: 2736: 2727: 2722: 2717: 2713: 2712: 2711: 2710: 2709: 2695: 2694: 2684: 2679: 2655: 2654: 2649: 2645: 2644: 2643: 2642: 2641: 2627: 2626: 2616: 2611: 2593: 2592: 2591: 2590: 2576: 2575: 2565: 2560: 2536: 2535: 2530: 2526: 2525: 2524: 2523: 2522: 2508: 2507: 2497: 2492: 2474: 2473: 2472: 2471: 2451: 2450: 2440: 2435: 2414: 2413: 2401: 2400: 2385: 2384: 2375: 2374: 2364: 2359: 2324: 2322: 2321: 2316: 2314: 2302: 2300: 2299: 2294: 2292: 2259: 2257: 2256: 2251: 2246: 2245: 2236: 2235: 2224: 2220: 2219: 2176: 2174: 2173: 2168: 2166: 2154: 2152: 2151: 2146: 2144: 2114: 2112: 2111: 2106: 2091: 2089: 2088: 2083: 2081: 2080: 2064: 2062: 2061: 2056: 2044: 2042: 2041: 2036: 2028: 2027: 2008: 2006: 2005: 2000: 1995: 1994: 1985: 1984: 1973: 1969: 1968: 1950: 1949: 1937: 1936: 1915: 1914: 1895: 1893: 1892: 1887: 1875: 1873: 1872: 1867: 1865: 1864: 1848: 1846: 1845: 1840: 1838: 1826: 1824: 1823: 1818: 1816: 1804: 1802: 1801: 1796: 1784: 1782: 1781: 1776: 1774: 1773: 1750: 1741: 1739: 1738: 1733: 1715: 1714: 1705: 1704: 1693: 1671: 1670: 1638: 1634: 1632: 1631: 1626: 1614: 1612: 1611: 1606: 1604: 1603: 1587: 1585: 1584: 1579: 1567: 1565: 1564: 1559: 1543: 1541: 1540: 1535: 1519: 1517: 1516: 1511: 1499: 1497: 1496: 1491: 1489: 1488: 1473:with a function 1472: 1470: 1469: 1464: 1451: 1449: 1448: 1443: 1426:While property ( 1422: 1420: 1419: 1414: 1406: 1405: 1395: 1379: 1377: 1376: 1371: 1353: 1351: 1350: 1345: 1337: 1336: 1313: 1304: 1302: 1301: 1296: 1277: 1276: 1260: 1259: 1247: 1230: 1222: 1208: 1207: 1198: 1185: 1181: 1179: 1178: 1173: 1165: 1164: 1148: 1146: 1145: 1140: 1127:bounded operator 1124: 1122: 1121: 1116: 1114: 1113: 1097: 1095: 1094: 1089: 1077: 1075: 1074: 1069: 1053: 1051: 1050: 1045: 1043: 1042: 1026: 1024: 1023: 1018: 1006: 1004: 1003: 998: 975: 973: 972: 967: 950: 947: 924: 923: 904: 902: 901: 896: 884: 882: 881: 876: 860: 858: 857: 852: 832: 830: 829: 824: 809:be an arbitrary 808: 806: 805: 800: 747:complex analysis 690: 688: 687: 682: 670: 668: 667: 662: 643: 641: 640: 635: 633: 632: 598: 596: 595: 590: 572: 570: 569: 564: 550: 549: 526: 524: 523: 518: 516: 484: 469: 467: 466: 461: 449: 447: 446: 441: 429: 427: 426: 421: 397: 395: 394: 389: 377: 375: 374: 369: 354: 352: 351: 346: 334: 332: 331: 326: 314: 312: 311: 306: 304: 303: 285: 283: 282: 277: 254: 253: 226: 224: 223: 218: 200: 198: 197: 192: 184: 183: 167: 165: 164: 159: 141: 139: 138: 133: 131: 119: 117: 116: 111: 109: 97: 95: 94: 89: 77: 75: 74: 69: 21: 14824: 14823: 14819: 14818: 14817: 14815: 14814: 14813: 14799: 14798: 14783: 14677: 14548: 14543: 14542: 14537: 14533: 14528: 14524: 14519: 14515: 14510: 14506: 14501: 14497: 14486: 14482: 14477: 14473: 14468: 14464: 14459: 14455: 14450: 14446: 14441: 14437: 14428: 14424: 14415: 14411: 14406: 14402: 14397: 14365: 14259: 14256: 14255: 14194: 14191: 14190: 14171: 14168: 14167: 14129: 14125: 14123: 14120: 14119: 14078: 14077: 14072: 14070: 14061: 14060: 14043: 14030: 14029: 13995: 13990: 13968: 13964: 13941: 13938: 13937: 13902: 13898: 13853: 13847: 13844: 13843: 13823: 13822: 13817: 13815: 13806: 13805: 13794: 13781: 13780: 13757: 13754: 13753: 13721: 13717: 13687: 13663: 13658: 13627: 13621: 13616: 13595: 13592: 13591: 13557: 13554: 13553: 13521: 13517: 13509: 13506: 13505: 13464: 13447: 13441: 13436: 13422: 13421: 13417: 13403: 13400: 13399: 13379: 13375: 13373: 13370: 13369: 13338: 13335: 13334: 13293: 13288: 13275: 13274: 13272: 13269: 13268: 13218: 13215: 13214: 13207: 13183: 13180: 13179: 13157: 13154: 13153: 13137: 13134: 13133: 13111: 13108: 13107: 13072: 13068: 13003: 13000: 12999: 12980: 12977: 12976: 12948: 12944: 12942: 12939: 12938: 12921: 12917: 12915: 12912: 12911: 12895: 12892: 12891: 12874: 12869: 12868: 12866: 12863: 12862: 12845: 12841: 12839: 12836: 12835: 12818: 12814: 12812: 12809: 12808: 12786: 12781: 12780: 12779: 12775: 12769: 12765: 12715: 12712: 12711: 12691: 12687: 12678: 12674: 12666: 12663: 12662: 12576: 12572: 12555: 12552: 12551: 12480: 12477: 12476: 12475: 12386: 12382: 12380: 12377: 12376: 12320: 12316: 12311: 12308: 12307: 12272: 12240: 12237: 12236: 12209: 12206: 12205: 12165: 12162: 12161: 12138: 12135: 12134: 12133:coincides with 12114: 12109: 12108: 12078: 12074: 12069: 12066: 12065: 12038: 12034: 12016: 12012: 12003: 11999: 11988: 11985: 11984: 11955: for  11953: 11905: 11901: 11899: 11896: 11895: 11871: 11868: 11867: 11850: 11845: 11844: 11836: 11833: 11832: 11815: 11810: 11809: 11795: 11792: 11791: 11775: 11772: 11771: 11749: 11746: 11745: 11725: 11722: 11721: 11710: 11669: 11643: 11641: 11618: 11615: 11614: 11592: 11589: 11588: 11587:with bandwidth 11569: 11560: 11556: 11554: 11551: 11550: 11524: 11520: 11510: 11497: 11492: 11482: 11459: 11456: 11455: 11433: 11424: 11420: 11418: 11415: 11414: 11398: 11396: 11393: 11392: 11365: 11356: 11352: 11350: 11347: 11346: 11322: 11320: 11317: 11316: 11300: 11292: 11289: 11288: 11268: 11263: 11262: 11260: 11257: 11256: 11232: 11231: 11220: 11214: 11213: 11202: 11192: 11191: 11168: 11165: 11164: 11130: 11127: 11126: 11119: 11092:Bergman kernels 11088: 11085:Bergman kernels 11055: 11049: 11048: 11042: 11038: 11024: 11012: 11008: 10989: 10983: 10982: 10975: 10974: 10970: 10961: 10956: 10944: 10941: 10940: 10922: 10919: 10918: 10902: 10899: 10898: 10846: 10844: 10840: 10836: 10813: 10810: 10809: 10761: 10757: 10753: 10746: 10742: 10729: 10727: 10723: 10719: 10696: 10693: 10692: 10619: 10616: 10615: 10612: 10589: 10575: 10559: 10555: 10505: 10502: 10501: 10498: 10476: 10472: 10457: 10452: 10440: 10437: 10436: 10393: 10390: 10389: 10373: 10370: 10369: 10317: 10314: 10313: 10310: 10305: 10303:Common examples 10283: 10280: 10279: 10278:coincides with 10247: 10243: 10238: 10235: 10234: 10196: 10193: 10192: 10164: 10161: 10160: 10129: 10126: 10125: 10097: 10094: 10093: 10073: 10070: 10069: 9981: 9977: 9960: 9957: 9956: 9877: 9872: 9862: 9858: 9849: 9845: 9818: 9814: 9812: 9809: 9808: 9782: 9779: 9778: 9741: 9738: 9737: 9721: 9718: 9717: 9697: 9693: 9684: 9680: 9678: 9675: 9674: 9658: 9655: 9654: 9628: 9624: 9622: 9619: 9618: 9594: 9590: 9575: 9571: 9563: 9560: 9559: 9558:is a kernel on 9535: 9531: 9522: 9518: 9509: 9505: 9493: 9489: 9480: 9476: 9467: 9463: 9448: 9444: 9429: 9425: 9410: 9406: 9391: 9387: 9376: 9373: 9372: 9348: 9337: 9327: 9323: 9318: 9315: 9314: 9297: 9286: 9276: 9272: 9267: 9264: 9263: 9246: 9235: 9225: 9221: 9216: 9213: 9212: 9205: 9179: 9175: 9122: 9119: 9118: 9101: 9097: 9095: 9092: 9091: 9057: 9045: 9041: 8984: 8980: 8959: 8955: 8947: 8944: 8943: 8923: 8919: 8917: 8914: 8913: 8879: 8867: 8863: 8804: 8780: 8776: 8774: 8771: 8770: 8748: 8745: 8744: 8724: 8720: 8705: 8701: 8693: 8689: 8687: 8667: 8664: 8663: 8646: 8642: 8634: 8631: 8630: 8602: 8599: 8598: 8581: 8577: 8560: 8557: 8556: 8534: 8531: 8530: 8505: 8502: 8501: 8485: 8482: 8481: 8445: 8441: 8388: 8385: 8384: 8359: 8356: 8355: 8327: 8324: 8323: 8316: 8278: 8274: 8265: 8261: 8260: 8249: 8245: 8238: 8234: 8233: 8225: 8221: 8220: 8209: 8205: 8198: 8194: 8193: 8192: 8190: 8184: 8173: 8160: 8145: 8141: 8140: 8138: 8135: 8134: 8115: 8112: 8111: 8078: 8074: 8068: 8061: 8057: 8056: 8045: 8041: 8034: 8030: 8027: 8021: 8010: 7999: 7998: 7982: 7978: 7971: 7967: 7959: 7956: 7955: 7936: 7933: 7932: 7916: 7913: 7912: 7893: 7890: 7889: 7849: 7845: 7829: 7825: 7818: 7814: 7808: 7797: 7771: 7767: 7755: 7739: 7733: 7730: 7729: 7698: 7695: 7694: 7665: 7661: 7645: 7641: 7634: 7630: 7624: 7613: 7586: 7583: 7582: 7563: 7560: 7559: 7540: 7537: 7536: 7504: 7500: 7498: 7495: 7494: 7469: 7466: 7465: 7448: 7444: 7442: 7439: 7438: 7419: 7416: 7415: 7392: 7388: 7379: 7375: 7373: 7370: 7369: 7343: 7339: 7337: 7334: 7333: 7313: 7309: 7304: 7301: 7300: 7274: 7270: 7264: 7260: 7242: 7238: 7232: 7228: 7226: 7223: 7222: 7199: 7195: 7183: 7177: 7174: 7173: 7150: 7146: 7140: 7136: 7131: 7128: 7127: 7106: 7102: 7100: 7097: 7096: 7077: 7074: 7073: 7056: 7052: 7050: 7047: 7046: 7030: 7027: 7026: 7010: 7007: 7006: 6989: 6985: 6983: 6980: 6979: 6960: 6957: 6956: 6930: 6926: 6924: 6921: 6920: 6854: 6850: 6826: 6822: 6817: 6814: 6813: 6784: 6780: 6762: 6758: 6749: 6745: 6743: 6740: 6739: 6723: 6703: 6700: 6699: 6683: 6680: 6679: 6660: 6657: 6656: 6636: 6633: 6632: 6629: 6603: 6599: 6591: 6588: 6587: 6564: 6560: 6559: 6555: 6553: 6550: 6549: 6528: 6524: 6522: 6519: 6518: 6486: 6482: 6473: 6469: 6463: 6459: 6450: 6446: 6434: 6430: 6424: 6420: 6411: 6407: 6395: 6391: 6383: 6379: 6378: 6374: 6365: 6361: 6349: 6345: 6339: 6335: 6326: 6322: 6310: 6306: 6294: 6290: 6270: 6267: 6266: 6229: 6226: 6225: 6208: 6204: 6193: 6189: 6188: 6184: 6182: 6179: 6178: 6155: 6151: 6149: 6146: 6145: 6126: 6122: 6121: 6117: 6108: 6104: 6096: 6093: 6092: 6091:, we can write 6064: 6061: 6060: 6047: 6016: 6013: 6012: 5980: 5976: 5971: 5968: 5967: 5966:on the span of 5950: 5946: 5925: 5921: 5907: 5904: 5903: 5880: 5876: 5870: 5866: 5857: 5853: 5820: 5816: 5810: 5806: 5797: 5793: 5788: 5785: 5784: 5780:) implies that 5708: 5704: 5692: 5688: 5682: 5671: 5656: 5652: 5651: 5640: 5636: 5625: 5621: 5620: 5616: 5615: 5611: 5610: 5604: 5600: 5594: 5583: 5570: 5566: 5560: 5556: 5545: 5542: 5541: 5504: 5500: 5499: 5486: 5482: 5481: 5477: 5471: 5467: 5455: 5444: 5439: 5435: 5434: 5422: 5406: 5396: 5378: 5374: 5373: 5369: 5363: 5359: 5353: 5342: 5321: 5318: 5317: 5308: 5265: 5261: 5260: 5249: 5245: 5236: 5232: 5231: 5227: 5226: 5203: 5200: 5199: 5173: 5169: 5160: 5156: 5144: 5140: 5133: 5129: 5128: 5122: 5111: 5101: 5090: 5075: 5071: 5070: 5057: 5053: 5052: 5048: 5042: 5038: 5032: 5021: 5006: 5002: 5001: 4997: 4991: 4987: 4981: 4970: 4965: 4961: 4960: 4958: 4955: 4954: 4949: 4933: 4927: 4911: 4850: 4829: 4826: 4825: 4794: 4791: 4790: 4764: 4760: 4758: 4755: 4754: 4733: 4729: 4727: 4724: 4723: 4670: 4666: 4645: 4637: 4623: 4618: 4587: 4583: 4582: 4580: 4559: 4551: 4536: 4532: 4531: 4527: 4521: 4517: 4506: 4503: 4502: 4471: 4470: 4461: 4460: 4458: 4452: 4451: 4419: 4417: 4402: 4398: 4391: 4390: 4365: 4361: 4346: 4342: 4336: 4328: 4322: 4319: 4318: 4289: 4285: 4283: 4280: 4279: 4240: 4208: 4206: 4173: 4172: 4168: 4152: 4134: 4130: 4128: 4125: 4124: 4104: 4100: 4098: 4095: 4094: 4075: 4072: 4071: 4046: 4042: 4041: 4037: 4019: 4001: 3996: 3995: 3978: 3972: 3964: 3958: 3948: 3938: 3920: 3915: 3914: 3897: 3891: 3883: 3871: 3861: 3856: 3848: 3831: 3829: 3826: 3825: 3806: 3803: 3802: 3758: 3754: 3736: 3728: 3714: 3709: 3692: 3689: 3688: 3654: 3652: 3649: 3648: 3632: 3629: 3628: 3608: 3606: 3603: 3602: 3586: 3583: 3582: 3563: 3554: 3550: 3548: 3545: 3544: 3501: 3499: 3478: 3470: 3455: 3451: 3450: 3446: 3432: 3429: 3428: 3409: 3406: 3405: 3368: 3364: 3346: 3338: 3317: 3314: 3313: 3294: 3285: 3281: 3279: 3276: 3275: 3211: 3202: 3198: 3181: 3178: 3177: 3146: 3143: 3142: 3123: 3120: 3119: 3078: 3075: 3074: 3053: 3049: 3047: 3044: 3043: 3021: 3018: 3017: 3001: 2998: 2997: 2977: 2974: 2973: 2957: 2954: 2953: 2921: 2917: 2915: 2912: 2911: 2908: 2887: 2884: 2883: 2867: 2864: 2863: 2844: 2835: 2831: 2816: 2812: 2809: and  2807: 2792: 2788: 2773: 2769: 2761: 2753: 2750: 2749: 2723: 2718: 2705: 2701: 2700: 2696: 2690: 2686: 2680: 2669: 2664: 2660: 2650: 2637: 2633: 2632: 2628: 2622: 2618: 2612: 2601: 2586: 2582: 2581: 2577: 2571: 2567: 2561: 2550: 2545: 2541: 2540: 2531: 2518: 2514: 2513: 2509: 2503: 2499: 2493: 2482: 2467: 2463: 2462: 2458: 2457: 2453: 2452: 2446: 2442: 2436: 2425: 2409: 2405: 2396: 2392: 2380: 2376: 2370: 2366: 2360: 2343: 2337: 2334: 2333: 2310: 2308: 2305: 2304: 2288: 2268: 2265: 2264: 2241: 2237: 2231: 2227: 2215: 2211: 2185: 2182: 2181: 2162: 2160: 2157: 2156: 2140: 2120: 2117: 2116: 2100: 2097: 2096: 2076: 2072: 2070: 2067: 2066: 2050: 2047: 2046: 2023: 2019: 2017: 2014: 2013: 1990: 1986: 1980: 1976: 1964: 1960: 1945: 1941: 1932: 1928: 1910: 1906: 1904: 1901: 1900: 1881: 1878: 1877: 1860: 1856: 1854: 1851: 1850: 1834: 1832: 1829: 1828: 1812: 1810: 1807: 1806: 1790: 1787: 1786: 1769: 1765: 1763: 1760: 1759: 1710: 1706: 1700: 1696: 1666: 1662: 1645: 1642: 1641: 1620: 1617: 1616: 1599: 1595: 1593: 1590: 1589: 1573: 1570: 1569: 1553: 1550: 1549: 1529: 1526: 1525: 1505: 1502: 1501: 1484: 1480: 1478: 1475: 1474: 1458: 1455: 1454: 1437: 1434: 1433: 1401: 1397: 1391: 1385: 1382: 1381: 1359: 1356: 1355: 1332: 1328: 1326: 1323: 1322: 1272: 1268: 1255: 1251: 1243: 1226: 1218: 1203: 1199: 1194: 1192: 1189: 1188: 1160: 1156: 1154: 1151: 1150: 1134: 1131: 1130: 1109: 1105: 1103: 1100: 1099: 1083: 1080: 1079: 1063: 1060: 1059: 1038: 1034: 1032: 1029: 1028: 1012: 1009: 1008: 992: 989: 988: 946: 919: 915: 913: 910: 909: 890: 887: 886: 870: 867: 866: 846: 843: 842: 818: 815: 814: 794: 791: 790: 787: 736:Salomon Bochner 676: 673: 672: 656: 653: 652: 628: 624: 622: 619: 618: 617:space an RKHS ( 578: 575: 574: 542: 538: 536: 533: 532: 512: 480: 475: 472: 471: 455: 452: 451: 435: 432: 431: 403: 400: 399: 383: 380: 379: 363: 360: 359: 340: 337: 336: 320: 317: 316: 299: 295: 293: 290: 289: 249: 245: 234: 231: 230: 206: 203: 202: 179: 175: 173: 170: 169: 147: 144: 143: 127: 125: 122: 121: 105: 103: 100: 99: 83: 80: 79: 63: 60: 59: 28: 23: 22: 15: 12: 11: 5: 14822: 14812: 14811: 14809:Hilbert spaces 14797: 14796: 14776: 14762: 14759: 14733:(3): 363–417. 14727:Constr. Approx 14722: 14715: 14714:, August 2005. 14708: 14666: 14659: 14648: 14611: 14604: 14576:(3): 337–404. 14556: 14547: 14544: 14541: 14540: 14531: 14522: 14513: 14504: 14495: 14480: 14471: 14462: 14453: 14444: 14435: 14422: 14409: 14399: 14398: 14396: 14393: 14392: 14391: 14386: 14381: 14376: 14371: 14364: 14361: 14353: 14352: 14341: 14338: 14335: 14332: 14329: 14326: 14323: 14320: 14317: 14314: 14311: 14308: 14305: 14302: 14299: 14296: 14293: 14290: 14287: 14284: 14281: 14278: 14275: 14272: 14269: 14266: 14263: 14240: 14237: 14234: 14231: 14228: 14225: 14222: 14219: 14216: 14213: 14210: 14207: 14204: 14201: 14198: 14175: 14155: 14152: 14149: 14146: 14143: 14140: 14137: 14132: 14128: 14116: 14115: 14104: 14101: 14098: 14095: 14092: 14089: 14086: 14081: 14071: 14069: 14066: 14063: 14062: 14059: 14056: 14053: 14050: 14047: 14044: 14042: 14039: 14036: 14035: 14033: 14028: 14025: 14022: 14018: 14015: 14012: 14009: 14006: 14003: 13998: 13993: 13989: 13985: 13982: 13979: 13976: 13971: 13967: 13963: 13960: 13957: 13954: 13951: 13948: 13945: 13922: 13919: 13916: 13913: 13910: 13905: 13901: 13894: 13891: 13888: 13885: 13882: 13879: 13876: 13873: 13870: 13867: 13864: 13860: 13856: 13852: 13840: 13839: 13826: 13816: 13814: 13811: 13808: 13807: 13804: 13801: 13798: 13795: 13793: 13790: 13787: 13786: 13784: 13779: 13776: 13773: 13770: 13767: 13764: 13761: 13747: 13746: 13735: 13732: 13729: 13724: 13720: 13716: 13713: 13710: 13707: 13703: 13700: 13697: 13693: 13690: 13686: 13683: 13680: 13677: 13674: 13671: 13666: 13661: 13657: 13653: 13650: 13647: 13643: 13640: 13637: 13633: 13630: 13624: 13619: 13615: 13611: 13608: 13605: 13602: 13599: 13576: 13573: 13570: 13567: 13564: 13561: 13541: 13538: 13535: 13532: 13529: 13524: 13520: 13516: 13513: 13502: 13501: 13490: 13487: 13484: 13480: 13477: 13474: 13470: 13467: 13463: 13460: 13457: 13453: 13450: 13444: 13439: 13435: 13431: 13425: 13420: 13416: 13413: 13410: 13407: 13382: 13378: 13357: 13354: 13351: 13348: 13345: 13342: 13322: 13319: 13316: 13313: 13310: 13307: 13304: 13301: 13296: 13291: 13287: 13283: 13278: 13252: 13249: 13246: 13243: 13240: 13237: 13234: 13231: 13228: 13225: 13222: 13206: 13203: 13187: 13167: 13164: 13161: 13141: 13121: 13118: 13115: 13104: 13103: 13092: 13089: 13086: 13083: 13080: 13075: 13071: 13067: 13064: 13061: 13058: 13055: 13052: 13049: 13046: 13043: 13040: 13037: 13034: 13031: 13028: 13025: 13022: 13019: 13016: 13013: 13010: 13007: 12984: 12951: 12947: 12924: 12920: 12899: 12877: 12872: 12844: 12821: 12817: 12805: 12804: 12789: 12784: 12778: 12772: 12768: 12764: 12761: 12758: 12755: 12752: 12749: 12746: 12743: 12740: 12737: 12734: 12731: 12728: 12725: 12722: 12719: 12707:be defined as 12694: 12690: 12686: 12681: 12677: 12673: 12670: 12653: 12652: 12641: 12638: 12635: 12632: 12629: 12626: 12623: 12620: 12617: 12614: 12611: 12608: 12605: 12602: 12599: 12596: 12591: 12588: 12585: 12582: 12579: 12575: 12571: 12568: 12565: 12562: 12559: 12526: 12523: 12520: 12517: 12514: 12511: 12508: 12505: 12502: 12499: 12496: 12493: 12490: 12487: 12484: 12463: 12460: 12457: 12454: 12451: 12448: 12445: 12442: 12439: 12436: 12433: 12430: 12427: 12424: 12421: 12418: 12415: 12412: 12409: 12406: 12401: 12398: 12395: 12392: 12389: 12385: 12364: 12361: 12358: 12355: 12352: 12349: 12346: 12343: 12340: 12335: 12332: 12329: 12326: 12323: 12319: 12315: 12302: 12301: 12292: 12290: 12279: 12275: 12271: 12268: 12265: 12262: 12259: 12256: 12253: 12250: 12247: 12244: 12219: 12216: 12213: 12193: 12190: 12187: 12184: 12181: 12178: 12175: 12172: 12169: 12142: 12122: 12117: 12112: 12107: 12104: 12101: 12098: 12095: 12092: 12089: 12086: 12081: 12077: 12073: 12061: 12060: 12049: 12046: 12041: 12037: 12033: 12030: 12027: 12024: 12019: 12015: 12011: 12006: 12002: 11998: 11995: 11992: 11978: 11977: 11966: 11963: 11960: 11952: 11949: 11946: 11943: 11940: 11937: 11934: 11931: 11928: 11925: 11922: 11919: 11916: 11913: 11908: 11904: 11881: 11878: 11875: 11853: 11848: 11843: 11840: 11818: 11813: 11808: 11805: 11802: 11799: 11779: 11759: 11756: 11753: 11729: 11709: 11706: 11705: 11704: 11693: 11687: 11684: 11681: 11678: 11675: 11672: 11667: 11664: 11661: 11658: 11655: 11652: 11649: 11646: 11640: 11637: 11634: 11631: 11628: 11625: 11622: 11599: 11596: 11576: 11572: 11568: 11563: 11559: 11547: 11546: 11535: 11527: 11523: 11517: 11514: 11509: 11506: 11503: 11500: 11496: 11489: 11486: 11481: 11478: 11475: 11472: 11469: 11466: 11463: 11440: 11436: 11432: 11427: 11423: 11401: 11372: 11368: 11364: 11359: 11355: 11325: 11303: 11299: 11296: 11271: 11266: 11251:In this case, 11249: 11248: 11235: 11230: 11227: 11224: 11221: 11219: 11216: 11215: 11212: 11209: 11206: 11203: 11201: 11198: 11197: 11195: 11190: 11187: 11184: 11181: 11178: 11175: 11172: 11149: 11146: 11143: 11140: 11137: 11134: 11117: 11114:is used, then 11087: 11082: 11081: 11080: 11079: 11078: 11077: 11076: 11065: 11062: 11058: 11052: 11045: 11041: 11037: 11034: 11030: 11027: 11023: 11020: 11015: 11011: 11007: 11004: 11001: 10996: 10993: 10986: 10978: 10973: 10969: 10964: 10959: 10955: 10951: 10948: 10926: 10906: 10895: 10894: 10893: 10882: 10879: 10876: 10872: 10865: 10861: 10858: 10855: 10852: 10849: 10843: 10839: 10835: 10832: 10829: 10826: 10823: 10820: 10817: 10799: 10798: 10797: 10796: 10795: 10784: 10781: 10778: 10774: 10764: 10760: 10756: 10749: 10745: 10741: 10738: 10735: 10732: 10726: 10722: 10718: 10715: 10712: 10709: 10706: 10703: 10700: 10665: 10662: 10659: 10656: 10653: 10650: 10647: 10644: 10641: 10638: 10635: 10632: 10629: 10626: 10623: 10611: 10606: 10605: 10604: 10592: 10588: 10585: 10582: 10578: 10574: 10571: 10567: 10562: 10558: 10554: 10551: 10548: 10545: 10542: 10539: 10536: 10533: 10530: 10527: 10524: 10521: 10518: 10515: 10512: 10509: 10497: 10494: 10479: 10475: 10471: 10468: 10465: 10460: 10455: 10451: 10447: 10444: 10424: 10421: 10418: 10415: 10412: 10409: 10406: 10403: 10400: 10397: 10377: 10366: 10365: 10354: 10351: 10348: 10345: 10342: 10339: 10336: 10333: 10330: 10327: 10324: 10321: 10309: 10306: 10304: 10301: 10300: 10299: 10287: 10267: 10264: 10261: 10258: 10255: 10250: 10246: 10242: 10230: 10229: 10228: 10227: 10215: 10212: 10209: 10206: 10203: 10200: 10180: 10177: 10174: 10171: 10168: 10148: 10145: 10142: 10139: 10136: 10133: 10113: 10110: 10107: 10104: 10101: 10077: 10066: 10065: 10064: 10053: 10050: 10047: 10044: 10041: 10038: 10035: 10031: 10028: 10025: 10022: 10019: 10016: 10013: 10010: 10007: 10004: 10001: 9998: 9995: 9992: 9989: 9984: 9980: 9976: 9973: 9970: 9967: 9964: 9947: 9946: 9945: 9934: 9931: 9928: 9925: 9922: 9918: 9915: 9912: 9909: 9906: 9903: 9900: 9897: 9894: 9891: 9888: 9885: 9880: 9875: 9871: 9865: 9861: 9857: 9852: 9848: 9844: 9841: 9838: 9835: 9832: 9829: 9826: 9821: 9817: 9792: 9789: 9786: 9766: 9763: 9760: 9757: 9754: 9751: 9748: 9745: 9725: 9714: 9700: 9696: 9692: 9687: 9683: 9662: 9642: 9639: 9636: 9631: 9627: 9615: 9614: 9613: 9602: 9597: 9593: 9589: 9586: 9583: 9578: 9574: 9570: 9567: 9556: 9555: 9554: 9543: 9538: 9534: 9530: 9525: 9521: 9517: 9512: 9508: 9504: 9501: 9496: 9492: 9488: 9483: 9479: 9475: 9470: 9466: 9462: 9459: 9456: 9451: 9447: 9443: 9440: 9437: 9432: 9428: 9424: 9421: 9418: 9413: 9409: 9405: 9402: 9399: 9394: 9390: 9386: 9383: 9380: 9356: 9351: 9346: 9343: 9340: 9336: 9330: 9326: 9322: 9300: 9295: 9292: 9289: 9285: 9279: 9275: 9271: 9249: 9244: 9241: 9238: 9234: 9228: 9224: 9220: 9204: 9201: 9182: 9178: 9174: 9171: 9168: 9165: 9162: 9159: 9156: 9153: 9150: 9147: 9144: 9141: 9138: 9135: 9132: 9129: 9126: 9104: 9100: 9088: 9087: 9076: 9073: 9070: 9067: 9064: 9056: 9053: 9048: 9044: 9040: 9037: 9034: 9031: 9028: 9025: 9022: 9019: 9016: 9013: 9010: 9007: 9004: 9001: 8998: 8995: 8992: 8987: 8983: 8979: 8976: 8973: 8970: 8967: 8962: 8958: 8954: 8951: 8926: 8922: 8910: 8909: 8898: 8895: 8892: 8889: 8886: 8878: 8875: 8870: 8866: 8862: 8859: 8856: 8853: 8850: 8847: 8844: 8841: 8838: 8835: 8832: 8829: 8826: 8823: 8820: 8817: 8814: 8811: 8807: 8803: 8800: 8797: 8794: 8791: 8788: 8783: 8779: 8752: 8727: 8723: 8719: 8716: 8713: 8708: 8704: 8696: 8692: 8686: 8683: 8680: 8677: 8674: 8671: 8649: 8645: 8641: 8638: 8612: 8609: 8606: 8584: 8580: 8576: 8573: 8570: 8567: 8564: 8544: 8541: 8538: 8509: 8489: 8476: 8475: 8466: 8464: 8453: 8448: 8444: 8440: 8437: 8434: 8431: 8428: 8425: 8422: 8419: 8416: 8413: 8410: 8407: 8404: 8401: 8398: 8395: 8392: 8363: 8343: 8340: 8337: 8334: 8331: 8315: 8312: 8300: 8299: 8288: 8281: 8277: 8268: 8264: 8258: 8252: 8248: 8244: 8241: 8237: 8228: 8224: 8218: 8212: 8208: 8204: 8201: 8197: 8187: 8182: 8179: 8176: 8172: 8168: 8163: 8158: 8154: 8151: 8148: 8144: 8119: 8108: 8107: 8095: 8091: 8088: 8081: 8077: 8071: 8064: 8060: 8054: 8048: 8044: 8040: 8037: 8033: 8024: 8019: 8016: 8013: 8009: 8002: 7996: 7993: 7990: 7985: 7981: 7977: 7974: 7970: 7966: 7963: 7940: 7920: 7897: 7886: 7885: 7874: 7871: 7867: 7863: 7860: 7857: 7852: 7848: 7843: 7840: 7837: 7832: 7828: 7821: 7817: 7811: 7806: 7803: 7800: 7796: 7792: 7789: 7786: 7783: 7780: 7777: 7774: 7770: 7764: 7761: 7758: 7754: 7748: 7745: 7742: 7738: 7714: 7711: 7708: 7705: 7702: 7691: 7690: 7679: 7676: 7673: 7668: 7664: 7659: 7656: 7653: 7648: 7644: 7637: 7633: 7627: 7622: 7619: 7616: 7612: 7608: 7605: 7602: 7599: 7596: 7593: 7590: 7567: 7547: 7544: 7524: 7521: 7518: 7515: 7512: 7507: 7503: 7482: 7479: 7476: 7473: 7451: 7447: 7426: 7423: 7403: 7400: 7395: 7391: 7387: 7382: 7378: 7357: 7354: 7351: 7346: 7342: 7321: 7316: 7312: 7308: 7288: 7285: 7282: 7277: 7273: 7267: 7263: 7259: 7256: 7253: 7250: 7245: 7241: 7235: 7231: 7210: 7207: 7202: 7198: 7192: 7189: 7186: 7182: 7161: 7158: 7153: 7149: 7143: 7139: 7135: 7109: 7105: 7081: 7059: 7055: 7034: 7014: 6992: 6988: 6964: 6944: 6941: 6938: 6933: 6929: 6917: 6916: 6905: 6902: 6899: 6896: 6893: 6889: 6886: 6883: 6880: 6877: 6874: 6871: 6868: 6865: 6862: 6857: 6853: 6849: 6846: 6843: 6840: 6837: 6834: 6829: 6825: 6821: 6798: 6795: 6792: 6787: 6783: 6779: 6776: 6773: 6770: 6765: 6761: 6757: 6752: 6748: 6726: 6722: 6719: 6716: 6713: 6710: 6707: 6687: 6664: 6640: 6628: 6625: 6606: 6602: 6598: 6595: 6567: 6563: 6558: 6531: 6527: 6515: 6514: 6503: 6500: 6497: 6494: 6489: 6485: 6481: 6476: 6472: 6466: 6462: 6458: 6453: 6449: 6445: 6442: 6437: 6433: 6427: 6423: 6419: 6414: 6410: 6406: 6403: 6398: 6394: 6386: 6382: 6377: 6373: 6368: 6364: 6360: 6357: 6352: 6348: 6342: 6338: 6334: 6329: 6325: 6321: 6318: 6313: 6309: 6305: 6302: 6297: 6293: 6289: 6286: 6283: 6280: 6277: 6274: 6239: 6236: 6233: 6211: 6207: 6203: 6196: 6192: 6187: 6166: 6163: 6158: 6154: 6129: 6125: 6120: 6116: 6111: 6107: 6103: 6100: 6068: 6045: 6026: 6023: 6020: 6000: 5997: 5994: 5991: 5988: 5983: 5979: 5975: 5953: 5949: 5945: 5942: 5939: 5936: 5933: 5928: 5924: 5920: 5917: 5914: 5911: 5902:By linearity, 5900: 5899: 5888: 5883: 5879: 5873: 5869: 5865: 5860: 5856: 5852: 5849: 5846: 5843: 5840: 5837: 5834: 5831: 5828: 5823: 5819: 5813: 5809: 5805: 5800: 5796: 5792: 5752: 5751: 5740: 5737: 5734: 5731: 5728: 5725: 5722: 5719: 5716: 5711: 5707: 5703: 5700: 5695: 5691: 5685: 5680: 5677: 5674: 5670: 5666: 5659: 5655: 5649: 5643: 5639: 5635: 5628: 5624: 5619: 5614: 5607: 5603: 5597: 5592: 5589: 5586: 5582: 5578: 5573: 5569: 5563: 5559: 5555: 5552: 5549: 5529: 5528: 5517: 5514: 5507: 5503: 5497: 5489: 5485: 5480: 5474: 5470: 5464: 5461: 5458: 5453: 5450: 5447: 5443: 5438: 5431: 5428: 5425: 5421: 5415: 5412: 5409: 5405: 5394: 5391: 5388: 5381: 5377: 5372: 5366: 5362: 5356: 5351: 5348: 5345: 5341: 5337: 5334: 5331: 5328: 5325: 5306: 5268: 5264: 5258: 5252: 5248: 5244: 5239: 5235: 5230: 5225: 5222: 5219: 5216: 5213: 5210: 5207: 5198:which implies 5196: 5195: 5184: 5181: 5176: 5172: 5168: 5163: 5159: 5155: 5152: 5147: 5143: 5136: 5132: 5125: 5120: 5117: 5114: 5110: 5104: 5099: 5096: 5093: 5089: 5085: 5078: 5074: 5068: 5060: 5056: 5051: 5045: 5041: 5035: 5030: 5027: 5024: 5020: 5016: 5009: 5005: 5000: 4994: 4990: 4984: 4979: 4976: 4973: 4969: 4964: 4947: 4931: 4925: 4909: 4893: 4892: 4849: 4846: 4833: 4813: 4810: 4807: 4804: 4801: 4798: 4778: 4775: 4772: 4767: 4763: 4736: 4732: 4718: 4717: 4706: 4703: 4700: 4697: 4694: 4691: 4688: 4685: 4679: 4676: 4673: 4669: 4665: 4662: 4659: 4656: 4653: 4648: 4643: 4640: 4636: 4629: 4626: 4622: 4617: 4614: 4611: 4605: 4601: 4598: 4595: 4590: 4586: 4579: 4576: 4573: 4570: 4567: 4562: 4557: 4554: 4550: 4546: 4539: 4535: 4530: 4524: 4520: 4516: 4513: 4510: 4488: 4487: 4474: 4469: 4459: 4457: 4454: 4453: 4450: 4447: 4444: 4441: 4438: 4435: 4432: 4429: 4426: 4418: 4414: 4411: 4408: 4405: 4401: 4397: 4396: 4394: 4389: 4386: 4383: 4377: 4374: 4371: 4368: 4364: 4360: 4357: 4354: 4349: 4345: 4339: 4334: 4331: 4327: 4303: 4300: 4297: 4292: 4288: 4276: 4275: 4264: 4258: 4255: 4252: 4249: 4246: 4243: 4238: 4235: 4232: 4229: 4226: 4223: 4220: 4217: 4214: 4211: 4205: 4201: 4197: 4194: 4191: 4188: 4185: 4180: 4177: 4171: 4167: 4164: 4159: 4156: 4151: 4148: 4145: 4142: 4137: 4133: 4107: 4103: 4079: 4068: 4067: 4056: 4049: 4045: 4040: 4036: 4033: 4027: 4024: 4018: 4013: 4010: 4004: 3999: 3994: 3991: 3988: 3985: 3981: 3975: 3970: 3967: 3963: 3954: 3951: 3946: 3943: 3937: 3932: 3929: 3923: 3918: 3913: 3910: 3907: 3904: 3900: 3894: 3889: 3886: 3882: 3878: 3875: 3867: 3864: 3860: 3855: 3851: 3847: 3844: 3841: 3838: 3834: 3810: 3801:that, for all 3791: 3790: 3779: 3776: 3773: 3767: 3764: 3761: 3757: 3753: 3750: 3747: 3744: 3739: 3734: 3731: 3727: 3720: 3717: 3713: 3708: 3705: 3702: 3699: 3696: 3657: 3636: 3611: 3590: 3570: 3566: 3562: 3557: 3553: 3541: 3540: 3529: 3526: 3523: 3517: 3513: 3510: 3507: 3504: 3498: 3495: 3492: 3489: 3486: 3481: 3476: 3473: 3469: 3465: 3458: 3454: 3449: 3445: 3442: 3439: 3436: 3413: 3389: 3386: 3380: 3377: 3374: 3371: 3367: 3363: 3360: 3357: 3354: 3349: 3344: 3341: 3337: 3333: 3330: 3327: 3324: 3321: 3301: 3297: 3293: 3288: 3284: 3272: 3271: 3260: 3257: 3254: 3251: 3248: 3245: 3242: 3239: 3236: 3233: 3230: 3227: 3224: 3221: 3218: 3214: 3210: 3205: 3201: 3197: 3194: 3191: 3188: 3185: 3162: 3159: 3156: 3153: 3150: 3127: 3094: 3091: 3088: 3085: 3082: 3056: 3052: 3031: 3028: 3025: 3005: 2981: 2961: 2941: 2938: 2935: 2932: 2929: 2924: 2920: 2907: 2904: 2891: 2871: 2851: 2847: 2843: 2838: 2834: 2830: 2827: 2824: 2819: 2815: 2806: 2803: 2800: 2795: 2791: 2787: 2784: 2781: 2776: 2772: 2768: 2764: 2760: 2757: 2746: 2745: 2734: 2731: 2726: 2721: 2716: 2708: 2704: 2699: 2693: 2689: 2683: 2678: 2675: 2672: 2668: 2663: 2658: 2653: 2648: 2640: 2636: 2631: 2625: 2621: 2615: 2610: 2607: 2604: 2600: 2596: 2589: 2585: 2580: 2574: 2570: 2564: 2559: 2556: 2553: 2549: 2544: 2539: 2534: 2529: 2521: 2517: 2512: 2506: 2502: 2496: 2491: 2488: 2485: 2481: 2477: 2470: 2466: 2461: 2456: 2449: 2445: 2439: 2434: 2431: 2428: 2424: 2420: 2417: 2412: 2408: 2404: 2399: 2395: 2391: 2388: 2383: 2379: 2373: 2369: 2363: 2358: 2355: 2352: 2349: 2346: 2342: 2313: 2291: 2287: 2284: 2281: 2278: 2275: 2272: 2261: 2260: 2249: 2244: 2240: 2234: 2230: 2223: 2218: 2214: 2210: 2207: 2204: 2201: 2198: 2195: 2192: 2189: 2165: 2143: 2139: 2136: 2133: 2130: 2127: 2124: 2115:as a function 2104: 2079: 2075: 2065:associated to 2054: 2034: 2031: 2026: 2022: 2010: 2009: 1998: 1993: 1989: 1983: 1979: 1972: 1967: 1963: 1959: 1956: 1953: 1948: 1944: 1940: 1935: 1931: 1927: 1924: 1921: 1918: 1913: 1909: 1885: 1863: 1859: 1837: 1815: 1794: 1772: 1768: 1754: 1753: 1744: 1742: 1731: 1728: 1725: 1722: 1719: 1713: 1709: 1703: 1699: 1692: 1689: 1686: 1683: 1680: 1677: 1674: 1669: 1665: 1661: 1658: 1655: 1652: 1649: 1624: 1602: 1598: 1577: 1557: 1533: 1509: 1487: 1483: 1462: 1441: 1412: 1409: 1404: 1400: 1394: 1390: 1369: 1366: 1363: 1343: 1340: 1335: 1331: 1317: 1316: 1307: 1305: 1293: 1290: 1287: 1284: 1281: 1275: 1271: 1267: 1264: 1258: 1254: 1250: 1246: 1242: 1239: 1236: 1233: 1229: 1225: 1221: 1217: 1214: 1211: 1206: 1202: 1197: 1171: 1168: 1163: 1159: 1138: 1112: 1108: 1087: 1067: 1041: 1037: 1016: 996: 977: 976: 965: 962: 959: 956: 953: 945: 942: 939: 936: 933: 930: 927: 922: 918: 894: 874: 850: 822: 798: 786: 783: 732:Stefan Bergman 680: 660: 631: 627: 588: 585: 582: 562: 559: 556: 553: 548: 545: 541: 515: 511: 508: 505: 502: 499: 496: 493: 490: 487: 483: 479: 459: 439: 419: 416: 413: 410: 407: 387: 367: 344: 324: 302: 298: 288:The function 275: 272: 269: 266: 263: 260: 257: 252: 248: 244: 241: 238: 216: 213: 210: 190: 187: 182: 178: 157: 154: 151: 130: 108: 87: 67: 26: 9: 6: 4: 3: 2: 14821: 14810: 14807: 14806: 14804: 14793: 14789: 14782: 14777: 14774: 14770: 14766: 14763: 14760: 14756: 14752: 14748: 14744: 14740: 14736: 14732: 14728: 14723: 14720: 14716: 14713: 14709: 14705: 14701: 14696: 14691: 14687: 14683: 14676: 14672: 14667: 14664: 14660: 14657: 14653: 14649: 14645: 14641: 14636: 14631: 14627: 14623: 14622: 14617: 14612: 14609: 14605: 14601: 14597: 14593: 14589: 14584: 14579: 14575: 14571: 14570: 14565: 14561: 14557: 14554: 14550: 14549: 14535: 14526: 14517: 14508: 14499: 14492: 14491: 14484: 14475: 14466: 14457: 14448: 14439: 14432: 14426: 14419: 14413: 14404: 14400: 14390: 14387: 14385: 14382: 14380: 14377: 14375: 14372: 14370: 14367: 14366: 14360: 14358: 14339: 14333: 14330: 14327: 14321: 14318: 14315: 14312: 14309: 14303: 14300: 14297: 14291: 14288: 14285: 14282: 14279: 14273: 14270: 14267: 14254: 14253: 14252: 14232: 14229: 14223: 14214: 14211: 14205: 14202: 14199: 14196: 14187: 14173: 14150: 14147: 14144: 14138: 14135: 14130: 14126: 14118:This implies 14099: 14096: 14093: 14084: 14067: 14064: 14057: 14054: 14051: 14048: 14045: 14040: 14037: 14031: 14026: 14023: 14020: 14013: 14010: 14007: 14001: 13996: 13991: 13987: 13983: 13977: 13969: 13965: 13961: 13955: 13952: 13949: 13943: 13936: 13935: 13934: 13920: 13917: 13911: 13903: 13899: 13892: 13886: 13883: 13880: 13874: 13871: 13865: 13858: 13854: 13850: 13812: 13809: 13802: 13799: 13796: 13791: 13788: 13782: 13777: 13771: 13768: 13765: 13759: 13752: 13751: 13750: 13730: 13727: 13722: 13718: 13711: 13708: 13705: 13698: 13691: 13688: 13681: 13678: 13675: 13669: 13659: 13655: 13651: 13648: 13645: 13638: 13631: 13628: 13622: 13617: 13613: 13609: 13603: 13597: 13590: 13589: 13588: 13574: 13571: 13565: 13559: 13533: 13530: 13522: 13518: 13514: 13511: 13488: 13485: 13482: 13475: 13468: 13465: 13458: 13451: 13448: 13437: 13433: 13429: 13414: 13411: 13408: 13398: 13397: 13396: 13380: 13376: 13355: 13352: 13346: 13340: 13314: 13311: 13302: 13294: 13289: 13285: 13281: 13265: 13247: 13244: 13241: 13232: 13226: 13220: 13212: 13211:ReLU function 13202: 13199: 13185: 13165: 13162: 13159: 13139: 13119: 13116: 13113: 13087: 13084: 13081: 13073: 13069: 13062: 13059: 13056: 13050: 13047: 13038: 13035: 13032: 13026: 13020: 13017: 13014: 13005: 12998: 12997: 12996: 12982: 12974: 12969: 12965: 12949: 12945: 12918: 12897: 12875: 12842: 12819: 12815: 12787: 12770: 12766: 12762: 12756: 12750: 12744: 12738: 12735: 12732: 12723: 12720: 12710: 12709: 12708: 12692: 12688: 12675: 12671: 12668: 12660: 12659: 12639: 12630: 12627: 12624: 12618: 12612: 12609: 12606: 12597: 12594: 12586: 12583: 12580: 12569: 12566: 12563: 12550: 12549: 12548: 12546: 12545: 12539: 12521: 12518: 12515: 12509: 12506: 12503: 12497: 12491: 12488: 12485: 12455: 12452: 12449: 12443: 12437: 12434: 12431: 12422: 12419: 12413: 12410: 12407: 12396: 12393: 12390: 12383: 12356: 12353: 12350: 12347: 12344: 12341: 12338: 12330: 12327: 12324: 12317: 12300: 12293: 12291: 12277: 12263: 12260: 12257: 12251: 12248: 12245: 12242: 12235: 12234: 12231: 12214: 12211: 12188: 12185: 12182: 12179: 12176: 12170: 12159: 12154: 12140: 12115: 12105: 12102: 12099: 12096: 12093: 12090: 12087: 12084: 12079: 12047: 12044: 12039: 12031: 12025: 12022: 12017: 12009: 12004: 11996: 11993: 11983: 11982: 11981: 11964: 11961: 11958: 11950: 11947: 11944: 11938: 11935: 11932: 11923: 11917: 11911: 11906: 11894: 11893: 11892: 11879: 11876: 11873: 11851: 11841: 11838: 11816: 11803: 11800: 11797: 11777: 11757: 11754: 11751: 11743: 11719: 11715: 11691: 11682: 11679: 11676: 11670: 11662: 11659: 11656: 11650: 11647: 11644: 11638: 11632: 11629: 11626: 11620: 11613: 11612: 11611: 11597: 11594: 11561: 11557: 11533: 11525: 11512: 11507: 11504: 11501: 11494: 11487: 11484: 11479: 11473: 11470: 11467: 11461: 11454: 11453: 11452: 11425: 11421: 11390: 11387: 11383: 11357: 11353: 11344: 11343:Bergman space 11340: 11297: 11294: 11285: 11269: 11254: 11228: 11225: 11222: 11217: 11210: 11207: 11204: 11199: 11193: 11188: 11182: 11179: 11176: 11170: 11163: 11162: 11161: 11144: 11141: 11138: 11132: 11124: 11120: 11113: 11112:inner product 11109: 11105: 11101: 11097: 11093: 11086: 11063: 11060: 11043: 11035: 11028: 11025: 11021: 11018: 11013: 11005: 10999: 10994: 10991: 10971: 10967: 10962: 10957: 10949: 10939: 10938: 10924: 10904: 10896: 10880: 10877: 10874: 10870: 10863: 10856: 10853: 10850: 10841: 10837: 10833: 10827: 10824: 10821: 10815: 10808: 10807: 10806: 10805: 10803: 10800: 10782: 10779: 10776: 10772: 10762: 10758: 10754: 10747: 10739: 10736: 10733: 10724: 10720: 10716: 10710: 10707: 10704: 10698: 10691: 10690: 10689: 10688: 10686: 10682: 10679: 10678: 10677: 10657: 10654: 10651: 10642: 10639: 10633: 10630: 10627: 10621: 10610: 10586: 10583: 10580: 10572: 10569: 10565: 10560: 10552: 10549: 10543: 10540: 10537: 10531: 10525: 10519: 10516: 10513: 10507: 10500: 10499: 10493: 10477: 10469: 10463: 10458: 10453: 10445: 10419: 10416: 10413: 10407: 10401: 10395: 10375: 10349: 10346: 10343: 10337: 10331: 10328: 10325: 10319: 10312: 10311: 10285: 10262: 10259: 10256: 10253: 10248: 10244: 10232: 10231: 10210: 10207: 10204: 10198: 10178: 10175: 10172: 10169: 10166: 10143: 10140: 10137: 10131: 10111: 10108: 10105: 10102: 10099: 10091: 10075: 10067: 10051: 10048: 10045: 10042: 10039: 10036: 10029: 10026: 10020: 10017: 10014: 10008: 10002: 9999: 9996: 9990: 9987: 9982: 9974: 9971: 9968: 9962: 9955: 9954: 9952: 9948: 9932: 9929: 9926: 9923: 9910: 9907: 9904: 9898: 9895: 9892: 9886: 9883: 9878: 9873: 9863: 9859: 9855: 9850: 9846: 9839: 9833: 9830: 9827: 9819: 9815: 9807: 9806: 9805: 9804: 9790: 9787: 9784: 9764: 9761: 9755: 9752: 9749: 9743: 9723: 9715: 9698: 9694: 9690: 9685: 9681: 9660: 9640: 9637: 9634: 9629: 9625: 9616: 9600: 9595: 9591: 9587: 9584: 9581: 9576: 9572: 9568: 9565: 9557: 9536: 9532: 9528: 9523: 9519: 9510: 9506: 9502: 9494: 9490: 9486: 9481: 9477: 9468: 9464: 9460: 9449: 9445: 9441: 9438: 9435: 9430: 9426: 9419: 9411: 9407: 9403: 9400: 9397: 9392: 9388: 9378: 9371: 9370: 9369: 9368: 9354: 9349: 9344: 9341: 9338: 9328: 9324: 9298: 9293: 9290: 9287: 9277: 9273: 9247: 9242: 9239: 9236: 9226: 9222: 9210: 9209: 9208: 9200: 9198: 9180: 9169: 9163: 9160: 9154: 9148: 9142: 9136: 9133: 9130: 9124: 9102: 9098: 9074: 9068: 9065: 9062: 9051: 9046: 9035: 9029: 9026: 9023: 9017: 9011: 9005: 9002: 8999: 8996: 8993: 8990: 8985: 8977: 8965: 8960: 8952: 8942: 8941: 8940: 8924: 8920: 8896: 8890: 8887: 8884: 8873: 8868: 8857: 8851: 8848: 8845: 8839: 8833: 8827: 8824: 8821: 8818: 8815: 8809: 8798: 8795: 8792: 8786: 8781: 8777: 8769: 8768: 8767: 8764: 8750: 8741: 8725: 8714: 8706: 8702: 8694: 8690: 8681: 8675: 8669: 8647: 8643: 8639: 8636: 8628: 8627: 8610: 8607: 8604: 8582: 8578: 8574: 8568: 8562: 8542: 8539: 8536: 8527: 8525: 8524: 8507: 8487: 8474: 8467: 8465: 8451: 8446: 8435: 8429: 8426: 8420: 8414: 8408: 8402: 8399: 8396: 8390: 8383: 8382: 8379: 8376: 8361: 8341: 8335: 8332: 8329: 8321: 8311: 8309: 8305: 8286: 8279: 8275: 8266: 8262: 8256: 8250: 8246: 8242: 8239: 8235: 8226: 8222: 8216: 8210: 8206: 8202: 8199: 8195: 8180: 8177: 8174: 8170: 8166: 8161: 8156: 8152: 8149: 8146: 8142: 8133: 8132: 8131: 8117: 8093: 8086: 8079: 8075: 8069: 8062: 8058: 8052: 8046: 8042: 8038: 8035: 8031: 8017: 8014: 8011: 8007: 7991: 7983: 7979: 7975: 7972: 7968: 7964: 7961: 7954: 7953: 7952: 7938: 7918: 7909: 7895: 7872: 7869: 7865: 7858: 7850: 7846: 7838: 7830: 7826: 7819: 7815: 7809: 7804: 7801: 7798: 7794: 7790: 7784: 7781: 7778: 7772: 7768: 7762: 7759: 7756: 7740: 7728: 7727: 7726: 7712: 7709: 7706: 7703: 7700: 7674: 7666: 7662: 7654: 7646: 7642: 7635: 7631: 7620: 7617: 7614: 7610: 7606: 7600: 7597: 7594: 7588: 7581: 7580: 7579: 7565: 7545: 7542: 7519: 7513: 7510: 7505: 7501: 7477: 7471: 7449: 7445: 7424: 7421: 7401: 7398: 7393: 7389: 7385: 7380: 7376: 7352: 7344: 7340: 7314: 7310: 7283: 7275: 7271: 7265: 7261: 7257: 7251: 7243: 7239: 7233: 7229: 7208: 7205: 7200: 7196: 7184: 7159: 7156: 7151: 7141: 7137: 7125: 7107: 7103: 7093: 7079: 7057: 7053: 7032: 7012: 6990: 6986: 6976: 6962: 6939: 6931: 6927: 6900: 6894: 6891: 6884: 6878: 6872: 6869: 6866: 6860: 6855: 6851: 6847: 6841: 6832: 6827: 6823: 6812: 6811: 6810: 6793: 6785: 6781: 6771: 6763: 6759: 6755: 6750: 6746: 6717: 6714: 6711: 6708: 6705: 6685: 6678: 6677:Borel measure 6662: 6654: 6638: 6624: 6622: 6604: 6600: 6596: 6593: 6585: 6561: 6556: 6547: 6529: 6525: 6501: 6495: 6487: 6483: 6479: 6474: 6464: 6460: 6456: 6451: 6447: 6440: 6435: 6425: 6421: 6417: 6412: 6408: 6401: 6396: 6380: 6375: 6371: 6366: 6362: 6355: 6350: 6340: 6336: 6332: 6327: 6323: 6316: 6311: 6303: 6300: 6295: 6291: 6284: 6278: 6272: 6265: 6264: 6263: 6261: 6257: 6253: 6237: 6234: 6231: 6205: 6201: 6190: 6185: 6164: 6161: 6156: 6152: 6123: 6118: 6114: 6109: 6105: 6101: 6098: 6090: 6086: 6082: 6066: 6058: 6054: 6049: 6044: 6040: 6024: 6021: 6018: 5995: 5992: 5989: 5986: 5981: 5977: 5951: 5943: 5940: 5937: 5931: 5926: 5918: 5915: 5912: 5886: 5881: 5871: 5867: 5863: 5858: 5854: 5847: 5841: 5838: 5835: 5829: 5826: 5821: 5811: 5807: 5803: 5798: 5794: 5783: 5782: 5781: 5779: 5778: 5773: 5769: 5765: 5761: 5757: 5738: 5732: 5726: 5723: 5717: 5714: 5709: 5705: 5698: 5693: 5689: 5678: 5675: 5672: 5668: 5664: 5657: 5653: 5647: 5641: 5637: 5633: 5626: 5622: 5617: 5612: 5605: 5601: 5590: 5587: 5584: 5580: 5576: 5571: 5561: 5557: 5553: 5550: 5540: 5539: 5538: 5536: 5535: 5515: 5512: 5505: 5501: 5487: 5483: 5478: 5472: 5468: 5462: 5459: 5456: 5451: 5448: 5445: 5441: 5429: 5426: 5423: 5407: 5389: 5379: 5375: 5370: 5364: 5360: 5349: 5346: 5343: 5339: 5335: 5329: 5323: 5316: 5315: 5314: 5312: 5305: 5301: 5297: 5292: 5290: 5286: 5266: 5262: 5256: 5250: 5246: 5242: 5237: 5233: 5228: 5223: 5217: 5214: 5211: 5205: 5182: 5174: 5170: 5166: 5161: 5157: 5150: 5145: 5141: 5134: 5130: 5123: 5118: 5115: 5112: 5108: 5102: 5097: 5094: 5091: 5087: 5083: 5076: 5072: 5066: 5058: 5054: 5049: 5043: 5039: 5033: 5028: 5025: 5022: 5018: 5014: 5007: 5003: 4998: 4992: 4988: 4982: 4977: 4974: 4971: 4967: 4962: 4953: 4952: 4951: 4946: 4942: 4938: 4934: 4924: 4920: 4916: 4912: 4905: 4901: 4897: 4890: 4886: 4882: 4878: 4874: 4870: 4867: 4866: 4865: 4863: 4859: 4855: 4845: 4831: 4808: 4805: 4802: 4796: 4789:converges to 4773: 4765: 4761: 4752: 4734: 4730: 4721: 4704: 4698: 4692: 4689: 4686: 4683: 4677: 4674: 4671: 4667: 4663: 4657: 4651: 4646: 4641: 4638: 4634: 4627: 4624: 4620: 4615: 4612: 4609: 4596: 4588: 4584: 4577: 4571: 4565: 4552: 4548: 4544: 4537: 4533: 4522: 4518: 4514: 4511: 4501: 4500: 4499: 4497: 4493: 4467: 4455: 4448: 4442: 4439: 4436: 4433: 4427: 4424: 4412: 4409: 4406: 4403: 4399: 4392: 4387: 4384: 4381: 4375: 4372: 4369: 4366: 4362: 4355: 4347: 4343: 4329: 4325: 4317: 4316: 4315: 4298: 4290: 4286: 4262: 4253: 4250: 4247: 4241: 4230: 4227: 4224: 4218: 4212: 4209: 4203: 4199: 4192: 4189: 4186: 4178: 4175: 4169: 4165: 4162: 4157: 4154: 4149: 4143: 4135: 4131: 4123: 4122: 4121: 4105: 4101: 4091: 4077: 4054: 4047: 4043: 4034: 4025: 4022: 4016: 4011: 4008: 4002: 3989: 3983: 3965: 3961: 3952: 3949: 3944: 3941: 3935: 3930: 3927: 3921: 3908: 3902: 3892: 3887: 3884: 3880: 3876: 3873: 3865: 3862: 3858: 3853: 3842: 3836: 3824: 3823: 3822: 3808: 3800: 3796: 3777: 3774: 3771: 3765: 3762: 3759: 3755: 3748: 3742: 3737: 3732: 3729: 3725: 3718: 3715: 3711: 3706: 3700: 3694: 3687: 3686: 3685: 3683: 3678: 3676: 3672: 3634: 3626: 3588: 3555: 3551: 3527: 3524: 3521: 3508: 3502: 3496: 3490: 3484: 3471: 3467: 3463: 3456: 3452: 3443: 3440: 3437: 3427: 3426: 3425: 3411: 3403: 3387: 3384: 3378: 3375: 3372: 3369: 3365: 3358: 3352: 3339: 3335: 3331: 3325: 3319: 3286: 3282: 3252: 3249: 3246: 3243: 3237: 3231: 3225: 3222: 3219: 3203: 3199: 3195: 3192: 3186: 3183: 3176: 3175: 3174: 3157: 3154: 3151: 3148: 3141: 3125: 3118: 3115: 3111: 3106: 3092: 3089: 3083: 3072: 3054: 3050: 3029: 3026: 3023: 3003: 2995: 2979: 2972:is a set and 2959: 2936: 2933: 2930: 2922: 2918: 2903: 2889: 2869: 2849: 2841: 2836: 2832: 2828: 2825: 2822: 2817: 2813: 2804: 2801: 2798: 2793: 2789: 2785: 2782: 2779: 2774: 2770: 2766: 2758: 2755: 2732: 2729: 2724: 2719: 2706: 2702: 2697: 2691: 2687: 2681: 2676: 2673: 2670: 2666: 2656: 2651: 2646: 2638: 2634: 2629: 2623: 2619: 2613: 2608: 2605: 2602: 2598: 2594: 2587: 2583: 2578: 2572: 2568: 2562: 2557: 2554: 2551: 2547: 2542: 2537: 2532: 2527: 2519: 2515: 2510: 2504: 2500: 2494: 2489: 2486: 2483: 2479: 2475: 2468: 2464: 2459: 2454: 2447: 2443: 2437: 2432: 2429: 2426: 2422: 2418: 2410: 2406: 2402: 2397: 2393: 2386: 2381: 2377: 2371: 2367: 2361: 2356: 2353: 2350: 2347: 2344: 2340: 2332: 2331: 2330: 2328: 2282: 2279: 2276: 2273: 2270: 2247: 2242: 2232: 2228: 2221: 2216: 2212: 2205: 2199: 2196: 2193: 2187: 2180: 2179: 2178: 2134: 2131: 2128: 2125: 2122: 2102: 2093: 2077: 2073: 2052: 2032: 2029: 2024: 2020: 1996: 1991: 1981: 1977: 1970: 1965: 1961: 1954: 1946: 1942: 1933: 1929: 1925: 1919: 1911: 1907: 1899: 1898: 1897: 1896:we have that 1883: 1861: 1857: 1792: 1770: 1766: 1752: 1745: 1743: 1729: 1726: 1723: 1720: 1711: 1701: 1697: 1690: 1687: 1681: 1675: 1667: 1663: 1659: 1653: 1647: 1640: 1639: 1636: 1622: 1600: 1596: 1575: 1555: 1547: 1531: 1523: 1507: 1485: 1481: 1460: 1439: 1431: 1430: 1424: 1407: 1402: 1398: 1392: 1367: 1364: 1361: 1338: 1333: 1329: 1315: 1308: 1306: 1291: 1288: 1285: 1282: 1273: 1265: 1256: 1252: 1248: 1237: 1231: 1223: 1212: 1204: 1200: 1187: 1186: 1183: 1169: 1166: 1161: 1157: 1136: 1128: 1110: 1106: 1085: 1065: 1057: 1039: 1035: 1014: 994: 986: 982: 963: 960: 957: 954: 940: 934: 928: 925: 920: 916: 908: 907: 906: 892: 872: 864: 848: 840: 836: 835:Hilbert space 820: 812: 796: 782: 780: 774: 772: 768: 764: 760: 756: 752: 748: 743: 741: 737: 733: 729: 725: 721: 717: 713: 709: 705: 701: 696: 694: 678: 658: 649: 647: 629: 625: 615: 613: 607: 604: 602: 580: 557: 551: 546: 543: 539: 529: 506: 500: 497: 491: 485: 457: 437: 414: 411: 408: 385: 365: 356: 342: 322: 300: 296: 286: 273: 267: 261: 258: 250: 246: 242: 239: 228: 214: 211: 208: 188: 185: 180: 176: 155: 152: 149: 85: 65: 57: 53: 52:Hilbert space 49: 45: 41: 32: 19: 14791: 14787: 14768: 14765:Wahba, Grace 14730: 14726: 14688:(1): 82–95. 14685: 14681: 14671:Wahba, Grace 14658:, June 2013. 14625: 14619: 14607: 14573: 14567: 14555:, June 2011. 14534: 14525: 14516: 14507: 14498: 14488: 14483: 14474: 14465: 14456: 14447: 14438: 14430: 14425: 14417: 14412: 14403: 14379:Kernel trick 14354: 14188: 14117: 13841: 13748: 13503: 13266: 13208: 13200: 13105: 12972: 12970: 12966: 12806: 12656: 12654: 12542: 12540: 12305: 12294: 12155: 12062: 11979: 11741: 11711: 11548: 11337:denotes the 11287:The case of 11286: 11252: 11250: 11122: 11115: 11107: 11103: 11099: 11095: 11089: 10917:in the RKHS 10801: 10684: 10680: 10613: 10367: 9206: 9197:kernel trick 9089: 8911: 8765: 8742: 8624: 8528: 8521: 8479: 8468: 8377: 8319: 8317: 8314:Feature maps 8301: 8109: 7951:is given by 7910: 7887: 7692: 7299:, where the 7094: 6977: 6918: 6630: 6620: 6583: 6545: 6516: 6259: 6255: 6251: 6250:then, since 6088: 6084: 6080: 6056: 6052: 6050: 6042: 6038: 5901: 5775: 5771: 5767: 5763: 5759: 5755: 5753: 5532: 5530: 5310: 5303: 5295: 5293: 5288: 5284: 5197: 4944: 4940: 4936: 4929: 4922: 4918: 4914: 4907: 4903: 4899: 4895: 4894: 4888: 4884: 4880: 4872: 4868: 4857: 4851: 4722: 4719: 4489: 4277: 4092: 4069: 3792: 3679: 3542: 3273: 3138:. Fix some 3107: 2909: 2747: 2262: 2094: 2011: 1757: 1746: 1521: 1427: 1425: 1320: 1309: 987:if, for all 984: 980: 979:We say that 978: 788: 775: 744: 716:James Mercer 697: 692: 650: 645: 611: 608: 605: 530: 357: 287: 229: 47: 43: 37: 14628:(1): 1–49. 14166:reproduces 10435:satisfying 8320:feature map 6544:belongs to 4921:, ⋅ ). Let 4862:E. H. Moore 4753:, and that 3114:bandlimited 728:Gábor Szegő 702:concerning 14546:References 14442:Okutmustur 14074:otherwise. 12158:isomorphic 11744:for every 9736:such that 9203:Properties 8308:kernel PCA 7725:such that 7172:such that 5300:completion 4898:. For all 4887:for which 4871:. Suppose 4498:, we have 3684:, we have 3669:of entire 2748:for every 1182:such that 1056:continuous 863:evaluation 785:Definition 56:functional 14794:: 91–136. 14755:253885172 14656:1110.4017 14331:− 14322:⁡ 14316:− 14301:− 14292:⁡ 14286:− 14236:∞ 14224:× 14218:∞ 14200:× 14145:⋅ 14049:≤ 13988:∫ 13819:otherwise 13734:⟩ 13715:⟨ 13665:∞ 13656:∫ 13614:∫ 13537:∞ 13515:∈ 13443:∞ 13434:∫ 13419:⟩ 13406:⟨ 13318:∞ 13006:γ 12973:separable 12950:γ 12923:Γ 12777:⟩ 12748:⟨ 12693:γ 12685:→ 12680:Γ 12598:γ 12558:Γ 12525:Λ 12522:× 12516:∈ 12423:γ 12384:γ 12360:Λ 12357:∈ 12345:∈ 12318:γ 12270:→ 12267:Λ 12264:× 12258:× 12255:Λ 12252:× 12243:γ 12218:Λ 12215:× 12183:… 12168:Λ 12106:∈ 12094:∈ 12076:Γ 12040:⊺ 12014:⟩ 12001:Γ 11991:⟨ 11962:∈ 11948:∈ 11927:Γ 11903:Γ 11877:∈ 11842:∈ 11807:→ 11728:Γ 11680:− 11671:π 11660:− 11648:⁡ 11516:¯ 11505:− 11488:π 11339:unit disc 11226:≠ 11022:σ 10995:σ 10972:∫ 10954:‖ 10947:‖ 10875:σ 10864:σ 10860:‖ 10854:− 10848:‖ 10842:− 10777:σ 10759:σ 10744:‖ 10737:− 10731:‖ 10725:− 10661:‖ 10655:− 10649:‖ 10587:∈ 10573:∈ 10570:α 10547:⟩ 10535:⟨ 10532:α 10474:‖ 10470:β 10467:‖ 10450:‖ 10443:‖ 10423:⟩ 10420:β 10411:⟨ 10368:The RKHS 10353:⟩ 10341:⟨ 10260:∈ 10254:∣ 10176:∈ 10109:∈ 10046:∈ 10034:∀ 9988:≤ 9927:∈ 9921:∀ 9896:− 9870:‖ 9856:− 9843:‖ 9788:∈ 9691:× 9635:⊂ 9588:× 9585:⋯ 9582:× 9503:⋯ 9439:… 9401:… 9177:⟩ 9164:φ 9149:φ 9146:⟨ 9103:φ 9066:∈ 9055:∀ 9043:⟩ 9030:φ 9021:⟨ 8997:∈ 8982:‖ 8975:‖ 8961:φ 8957:‖ 8950:‖ 8925:φ 8888:∈ 8877:∀ 8865:⟩ 8852:φ 8843:⟨ 8819:∈ 8813:∃ 8810:∣ 8802:→ 8782:φ 8703:φ 8691:σ 8670:φ 8644:ℓ 8623:. Then ( 8608:∈ 8563:φ 8526:) holds. 8443:⟩ 8430:φ 8415:φ 8412:⟨ 8339:→ 8333:: 8330:φ 8322:is a map 8276:σ 8247:φ 8207:φ 8186:∞ 8171:∑ 8130:given by 8090:∞ 8076:σ 8043:φ 8023:∞ 8008:∑ 7976:∈ 7847:φ 7827:φ 7816:σ 7795:∑ 7791:− 7747:∞ 7744:→ 7710:∈ 7663:φ 7643:φ 7632:σ 7626:∞ 7611:∑ 7511:∈ 7502:φ 7390:σ 7311:φ 7272:φ 7262:σ 7240:φ 7197:σ 7191:∞ 7188:→ 7157:≥ 7138:σ 6963:μ 6895:μ 6867:⋅ 6852:∫ 6842:⋅ 6778:→ 6721:→ 6715:× 6686:μ 6566:⊥ 6471:⟩ 6444:⟨ 6432:⟩ 6405:⟨ 6393:⟩ 6385:⊥ 6359:⟨ 6347:⟩ 6320:⟨ 6308:⟩ 6288:⟨ 6235:∈ 6224:. Now if 6210:⊥ 6202:∈ 6195:⊥ 6162:∈ 6128:⊥ 6022:⊂ 5993:∈ 5948:⟩ 5944:⋅ 5938:⋅ 5935:⟨ 5923:⟩ 5919:⋅ 5913:⋅ 5910:⟨ 5878:⟩ 5851:⟨ 5818:⟩ 5791:⟨ 5684:∞ 5669:∑ 5596:∞ 5581:∑ 5568:⟩ 5548:⟨ 5442:∑ 5427:≥ 5414:∞ 5411:→ 5355:∞ 5340:∑ 5109:∑ 5088:∑ 5019:∑ 4968:∑ 4906:, define 4879:on a set 4806:− 4797:δ 4687:ω 4675:ω 4664:⋅ 4658:ω 4639:− 4635:∫ 4628:π 4604:¯ 4578:⋅ 4561:∞ 4556:∞ 4553:− 4549:∫ 4529:⟩ 4509:⟨ 4463:otherwise 4434:− 4428:∈ 4425:ω 4410:ω 4404:− 4373:ω 4367:− 4338:∞ 4333:∞ 4330:− 4326:∫ 4251:− 4242:π 4228:− 4213:⁡ 4190:− 4179:π 4166:⁡ 4158:π 4039:‖ 4032:‖ 4026:π 4012:ω 3990:ω 3974:∞ 3969:∞ 3966:− 3962:∫ 3953:π 3931:ω 3909:ω 3885:− 3881:∫ 3866:π 3854:≤ 3775:ω 3766:ω 3749:ω 3730:− 3726:∫ 3719:π 3680:From the 3673:, by the 3516:¯ 3497:⋅ 3480:∞ 3475:∞ 3472:− 3468:∫ 3448:⟩ 3435:⟨ 3376:ω 3370:− 3348:∞ 3343:∞ 3340:− 3336:∫ 3326:ω 3244:− 3238:⊂ 3226:⁡ 3220:∣ 3196:∈ 3161:∞ 3090:⊂ 3027:∈ 2980:μ 2937:μ 2842:∈ 2826:… 2799:∈ 2783:… 2759:∈ 2730:≥ 2667:∑ 2599:∑ 2548:∑ 2480:∑ 2423:∑ 2341:∑ 2286:→ 2280:× 2239:⟩ 2209:⟨ 2138:→ 2132:× 2030:∈ 1988:⟩ 1958:⟨ 1724:∈ 1718:∀ 1708:⟩ 1685:⟨ 1411:∞ 1365:∈ 1342:∞ 1321:Although 1286:∈ 1280:∀ 1270:‖ 1263:‖ 1249:≤ 1058:at every 958:∈ 952:∀ 932:↦ 720:functions 587:∞ 584:→ 552:⁡ 498:− 418:‖ 412:− 406:‖ 256:⟩ 237:⟨ 212:∈ 186:∈ 153:∈ 14803:Category 14673:(1971). 14562:(1950). 14363:See also 13859:′ 13692:′ 13632:′ 13469:′ 13452:′ 13106:for all 11029:′ 10681:Gaussian 9777:for all 8597:for all 8480:Clearly 8354:, where 8257:⟩ 8236:⟨ 8217:⟩ 8196:⟨ 8157:⟩ 8143:⟨ 8053:⟩ 8032:⟨ 7693:for all 7535:for all 7414:for all 6083:. Since 6037:because 5648:⟩ 5613:⟨ 5496:‖ 5437:‖ 5257:⟩ 5229:⟨ 5067:⟩ 4963:⟨ 4935: : 4421:if  2906:Examples 2715:‖ 2662:‖ 2647:⟩ 2543:⟨ 2528:⟩ 2455:⟨ 708:harmonic 14775:, 1990. 14747:2914365 14704:0290013 14644:1864085 14600:0051437 14592:1990404 14538:Rosasco 14529:Alvarez 14511:De Vito 14478:Rosasco 14469:Rosasco 14460:Durrett 14451:Paulson 12834:is the 12375:where 11315:(where 9949:By the 6011:. Then 5298:be the 4869:Theorem 3400:is the 3069:is the 3016:. For 2992:is the 2329:, i.e. 2012:where 50:) is a 14753:  14745:  14702:  14642:  14598:  14590:  13896:  13749:where 12807:where 12547:) via 11742:matrix 11094:. Let 9059:  8881:  6919:where 6144:where 6059:. Let 6055:is in 3274:where 2952:where 2225:  1974:  1876:is in 1758:Since 1694:  948:  753:, and 734:, and 614:spaces 609:While 14784:(PDF) 14751:S2CID 14678:(PDF) 14652:arXiv 14588:JSTOR 14520:Zhang 14395:Notes 13933:i.e. 10088:as a 5398:where 4896:Proof 1125:is a 983:is a 450:and 378:and 98:(to 14773:SIAM 14319:ReLU 14289:ReLU 14055:< 13842:and 13800:< 13552:and 13209:The 13152:and 12937:and 11980:and 11866:and 11716:and 10878:> 10780:> 9617:Let 9211:Let 8662:and 8555:and 8087:< 7399:> 7221:and 6698:and 6258:and 6177:and 5766:and 5294:Let 4163:sinc 3797:and 3223:supp 3158:< 3152:< 2303:(or 2155:(or 1827:(or 1339:< 1167:> 813:and 789:Let 710:and 706:for 335:at 120:or 48:RKHS 42:, a 14767:, 14735:doi 14690:doi 14630:doi 14578:doi 14262:min 14088:min 13236:max 13178:in 13132:in 11770:in 11645:sin 11451:is 11391:on 10683:or 9673:to 8969:inf 8939:by 7931:of 7753:sup 7737:lim 7181:lim 7005:of 6809:as 6619:in 6582:in 5774:, ( 5770:in 5537:): 5420:sup 5404:lim 5302:of 4950:by 4902:in 4210:sin 3404:of 2996:on 1615:of 1568:in 1500:in 1389:sup 1129:on 1078:in 1054:is 1007:in 841:on 837:of 811:set 714:. 540:sin 478:sup 38:In 14805:: 14792:13 14790:. 14786:. 14771:, 14749:. 14743:MR 14741:. 14731:35 14729:. 14700:MR 14698:. 14686:33 14684:. 14680:. 14640:MR 14638:. 14626:39 14624:. 14618:. 14596:MR 14594:. 14586:. 14574:68 14572:. 14566:. 14186:. 12964:. 12847:th 11284:. 10804:: 10687:: 10492:. 9953:, 8740:. 8318:A 8310:. 7908:. 7873:0. 6975:. 6262:: 5516:0. 4939:∈ 4913:= 4864:. 3821:, 3677:. 3105:. 2092:. 1423:. 1224::= 1027:, 905:, 833:a 781:. 749:, 730:, 603:. 227:, 14757:. 14737:: 14721:. 14706:. 14692:: 14654:: 14646:. 14632:: 14602:. 14580:: 14340:. 14337:) 14334:x 14328:y 14325:( 14313:y 14310:= 14307:) 14304:y 14298:x 14295:( 14283:x 14280:= 14277:) 14274:y 14271:, 14268:x 14265:( 14239:) 14233:, 14230:0 14227:[ 14221:) 14215:, 14212:0 14209:[ 14206:= 14203:X 14197:X 14174:f 14154:) 14151:y 14148:, 14142:( 14139:K 14136:= 14131:y 14127:K 14103:) 14100:y 14097:, 14094:x 14091:( 14085:= 14068:, 14065:y 14058:y 14052:x 14046:0 14041:, 14038:x 14032:{ 14027:= 14024:z 14021:d 14017:) 14014:y 14011:, 14008:z 14005:( 14002:G 13997:x 13992:0 13984:= 13981:) 13978:x 13975:( 13970:y 13966:K 13962:= 13959:) 13956:y 13953:, 13950:x 13947:( 13944:K 13921:0 13918:= 13915:) 13912:0 13909:( 13904:y 13900:K 13893:, 13890:) 13887:y 13884:, 13881:x 13878:( 13875:G 13872:= 13869:) 13866:x 13863:( 13855:y 13851:K 13813:, 13810:0 13803:y 13797:x 13792:, 13789:1 13783:{ 13778:= 13775:) 13772:y 13769:, 13766:x 13763:( 13760:G 13731:f 13728:, 13723:y 13719:K 13712:= 13709:x 13706:d 13702:) 13699:x 13696:( 13689:f 13685:) 13682:y 13679:, 13676:x 13673:( 13670:G 13660:0 13652:= 13649:x 13646:d 13642:) 13639:x 13636:( 13629:f 13623:y 13618:0 13610:= 13607:) 13604:y 13601:( 13598:f 13575:0 13572:= 13569:) 13566:0 13563:( 13560:f 13540:) 13534:, 13531:0 13528:[ 13523:1 13519:C 13512:f 13489:. 13486:x 13483:d 13479:) 13476:x 13473:( 13466:g 13462:) 13459:x 13456:( 13449:f 13438:0 13430:= 13424:H 13415:g 13412:, 13409:f 13381:2 13377:L 13356:0 13353:= 13350:) 13347:0 13344:( 13341:f 13321:) 13315:, 13312:0 13309:[ 13306:) 13303:0 13300:( 13295:1 13290:2 13286:L 13282:= 13277:H 13251:} 13248:x 13245:, 13242:0 13239:{ 13233:= 13230:) 13227:x 13224:( 13221:f 13186:T 13166:s 13163:, 13160:t 13140:X 13120:y 13117:, 13114:x 13091:) 13088:s 13085:, 13082:t 13079:( 13074:T 13070:K 13066:) 13063:y 13060:, 13057:x 13054:( 13051:K 13048:= 13045:) 13042:) 13039:s 13036:, 13033:y 13030:( 13027:, 13024:) 13021:t 13018:, 13015:x 13012:( 13009:( 12983:T 12946:H 12919:H 12898:D 12876:T 12871:R 12843:t 12820:t 12816:e 12788:T 12783:R 12771:t 12767:e 12763:, 12760:) 12757:x 12754:( 12751:f 12745:= 12742:) 12739:t 12736:, 12733:x 12730:( 12727:) 12724:f 12721:D 12718:( 12689:H 12676:H 12672:: 12669:D 12658:4 12640:. 12637:) 12634:) 12631:s 12628:, 12625:y 12622:( 12619:, 12616:) 12613:t 12610:, 12607:x 12604:( 12601:( 12595:= 12590:) 12587:s 12584:, 12581:t 12578:( 12574:) 12570:y 12567:, 12564:x 12561:( 12544:4 12537:. 12519:X 12513:) 12510:s 12507:, 12504:y 12501:( 12498:, 12495:) 12492:t 12489:, 12486:x 12483:( 12462:) 12459:) 12456:s 12453:, 12450:y 12447:( 12444:, 12441:) 12438:t 12435:, 12432:x 12429:( 12426:( 12420:= 12417:) 12414:s 12411:, 12408:y 12405:( 12400:) 12397:t 12394:, 12391:x 12388:( 12363:} 12354:t 12351:, 12348:X 12342:x 12339:: 12334:) 12331:t 12328:, 12325:x 12322:( 12314:{ 12299:) 12297:4 12295:( 12278:. 12274:R 12261:X 12249:X 12246:: 12212:X 12192:} 12189:T 12186:, 12180:, 12177:1 12174:{ 12171:= 12141:H 12121:} 12116:T 12111:R 12103:c 12100:, 12097:X 12091:x 12088:: 12085:c 12080:x 12072:{ 12048:. 12045:c 12036:) 12032:x 12029:( 12026:f 12023:= 12018:H 12010:c 12005:x 11997:, 11994:f 11965:X 11959:y 11951:H 11945:c 11942:) 11939:y 11936:, 11933:x 11930:( 11924:= 11921:) 11918:y 11915:( 11912:c 11907:x 11880:X 11874:x 11852:T 11847:R 11839:c 11817:T 11812:R 11804:X 11801:: 11798:f 11778:X 11758:y 11755:, 11752:x 11692:. 11686:) 11683:y 11677:x 11674:( 11666:) 11663:y 11657:x 11654:( 11651:a 11639:= 11636:) 11633:y 11630:, 11627:x 11624:( 11621:K 11598:a 11595:2 11575:) 11571:R 11567:( 11562:2 11558:L 11534:. 11526:2 11522:) 11513:y 11508:x 11502:1 11499:( 11495:1 11485:1 11480:= 11477:) 11474:y 11471:, 11468:x 11465:( 11462:K 11439:) 11435:D 11431:( 11426:2 11422:H 11400:D 11371:) 11367:D 11363:( 11358:2 11354:H 11324:D 11302:D 11298:= 11295:X 11270:n 11265:C 11253:H 11229:y 11223:x 11218:0 11211:y 11208:= 11205:x 11200:1 11194:{ 11189:= 11186:) 11183:y 11180:, 11177:x 11174:( 11171:K 11148:) 11145:y 11142:, 11139:x 11136:( 11133:K 11123:x 11118:x 11116:K 11108:H 11104:X 11100:H 11096:X 11064:. 11061:x 11057:d 11051:) 11044:2 11040:) 11036:x 11033:( 11026:f 11019:+ 11014:2 11010:) 11006:x 11003:( 11000:f 10992:1 10985:( 10977:R 10968:= 10963:2 10958:H 10950:f 10925:H 10905:f 10881:0 10871:, 10857:y 10851:x 10838:e 10834:= 10831:) 10828:y 10825:, 10822:x 10819:( 10816:K 10783:0 10773:, 10763:2 10755:2 10748:2 10740:y 10734:x 10721:e 10717:= 10714:) 10711:y 10708:, 10705:x 10702:( 10699:K 10664:) 10658:y 10652:x 10646:( 10643:K 10640:= 10637:) 10634:y 10631:, 10628:x 10625:( 10622:K 10591:N 10584:d 10581:, 10577:R 10566:, 10561:d 10557:) 10553:1 10550:+ 10544:y 10541:, 10538:x 10529:( 10526:= 10523:) 10520:y 10517:, 10514:x 10511:( 10508:K 10478:2 10464:= 10459:2 10454:H 10446:f 10417:, 10414:x 10408:= 10405:) 10402:x 10399:( 10396:f 10376:H 10350:y 10347:, 10344:x 10338:= 10335:) 10332:y 10329:, 10326:x 10323:( 10320:K 10298:. 10286:H 10266:} 10263:X 10257:x 10249:x 10245:K 10241:{ 10214:) 10211:y 10208:, 10205:x 10202:( 10199:K 10179:X 10173:y 10170:, 10167:x 10147:) 10144:y 10141:, 10138:x 10135:( 10132:K 10112:X 10106:y 10103:, 10100:x 10076:K 10052:. 10049:X 10043:y 10040:, 10037:x 10030:1 10027:= 10024:) 10021:y 10018:, 10015:y 10012:( 10009:K 10006:) 10003:x 10000:, 9997:x 9994:( 9991:K 9983:2 9979:) 9975:y 9972:, 9969:x 9966:( 9963:K 9933:. 9930:X 9924:x 9917:) 9914:) 9911:y 9908:, 9905:x 9902:( 9899:K 9893:1 9890:( 9887:2 9884:= 9879:2 9874:H 9864:y 9860:K 9851:x 9847:K 9840:= 9837:) 9834:y 9831:, 9828:x 9825:( 9820:K 9816:d 9791:X 9785:x 9765:1 9762:= 9759:) 9756:x 9753:, 9750:x 9747:( 9744:K 9724:K 9699:0 9695:X 9686:0 9682:X 9661:K 9641:, 9638:X 9630:0 9626:X 9601:. 9596:p 9592:X 9577:1 9573:X 9569:= 9566:X 9542:) 9537:p 9533:y 9529:, 9524:p 9520:x 9516:( 9511:p 9507:K 9500:) 9495:1 9491:y 9487:, 9482:1 9478:x 9474:( 9469:1 9465:K 9461:= 9458:) 9455:) 9450:p 9446:y 9442:, 9436:, 9431:1 9427:y 9423:( 9420:, 9417:) 9412:p 9408:x 9404:, 9398:, 9393:1 9389:x 9385:( 9382:( 9379:K 9355:. 9350:p 9345:1 9342:= 9339:i 9335:) 9329:i 9325:X 9321:( 9299:p 9294:1 9291:= 9288:i 9284:) 9278:i 9274:K 9270:( 9248:p 9243:1 9240:= 9237:i 9233:) 9227:i 9223:X 9219:( 9181:F 9173:) 9170:y 9167:( 9161:, 9158:) 9155:x 9152:( 9143:= 9140:) 9137:y 9134:, 9131:x 9128:( 9125:K 9099:H 9075:. 9072:} 9069:X 9063:x 9052:, 9047:F 9039:) 9036:x 9033:( 9027:, 9024:w 9018:= 9015:) 9012:x 9009:( 9006:f 9003:, 9000:F 8994:w 8991:: 8986:F 8978:w 8972:{ 8966:= 8953:f 8921:H 8897:. 8894:} 8891:X 8885:x 8874:, 8869:F 8861:) 8858:x 8855:( 8849:, 8846:w 8840:= 8837:) 8834:x 8831:( 8828:f 8825:, 8822:F 8816:w 8806:R 8799:X 8796:: 8793:f 8790:{ 8787:= 8778:H 8751:H 8726:i 8722:) 8718:) 8715:x 8712:( 8707:i 8695:i 8685:( 8682:= 8679:) 8676:x 8673:( 8648:2 8640:= 8637:F 8626:3 8611:X 8605:x 8583:x 8579:K 8575:= 8572:) 8569:x 8566:( 8543:H 8540:= 8537:F 8523:3 8508:F 8488:K 8473:) 8471:3 8469:( 8452:. 8447:F 8439:) 8436:y 8433:( 8427:, 8424:) 8421:x 8418:( 8409:= 8406:) 8403:y 8400:, 8397:x 8394:( 8391:K 8362:F 8342:F 8336:X 8287:. 8280:i 8267:2 8263:L 8251:i 8243:, 8240:g 8227:2 8223:L 8211:i 8203:, 8200:f 8181:1 8178:= 8175:i 8167:= 8162:H 8153:g 8150:, 8147:f 8118:H 8094:} 8080:i 8070:2 8063:2 8059:L 8047:i 8039:, 8036:f 8018:1 8015:= 8012:i 8001:| 7995:) 7992:X 7989:( 7984:2 7980:L 7973:f 7969:{ 7965:= 7962:H 7939:K 7919:H 7896:K 7870:= 7866:| 7862:) 7859:v 7856:( 7851:j 7842:) 7839:u 7836:( 7831:j 7820:j 7810:n 7805:1 7802:= 7799:j 7788:) 7785:v 7782:, 7779:u 7776:( 7773:K 7769:| 7763:v 7760:, 7757:u 7741:n 7713:X 7707:y 7704:, 7701:x 7678:) 7675:y 7672:( 7667:j 7658:) 7655:x 7652:( 7647:j 7636:j 7621:1 7618:= 7615:j 7607:= 7604:) 7601:y 7598:, 7595:x 7592:( 7589:K 7566:K 7546:. 7543:i 7523:) 7520:X 7517:( 7514:C 7506:i 7481:) 7478:X 7475:( 7472:C 7450:K 7446:T 7425:. 7422:i 7402:0 7394:i 7386:, 7381:K 7377:T 7356:) 7353:X 7350:( 7345:2 7341:L 7320:} 7315:i 7307:{ 7287:) 7284:x 7281:( 7276:i 7266:i 7258:= 7255:) 7252:x 7249:( 7244:i 7234:K 7230:T 7209:0 7206:= 7201:i 7185:i 7160:0 7152:i 7148:) 7142:i 7134:( 7108:K 7104:T 7080:K 7058:K 7054:T 7033:K 7013:K 6991:K 6987:T 6943:) 6940:X 6937:( 6932:2 6928:L 6904:) 6901:t 6898:( 6892:d 6888:) 6885:t 6882:( 6879:f 6876:) 6873:t 6870:, 6864:( 6861:K 6856:X 6848:= 6845:) 6839:( 6836:] 6833:f 6828:K 6824:T 6820:[ 6797:) 6794:X 6791:( 6786:2 6782:L 6775:) 6772:X 6769:( 6764:2 6760:L 6756:: 6751:K 6747:T 6725:R 6718:X 6712:X 6709:: 6706:K 6663:X 6639:K 6621:G 6605:H 6601:f 6597:= 6594:f 6584:G 6562:H 6557:f 6546:H 6530:x 6526:K 6502:, 6499:) 6496:x 6493:( 6488:H 6484:f 6480:= 6475:H 6465:H 6461:f 6457:, 6452:x 6448:K 6441:= 6436:G 6426:H 6422:f 6418:, 6413:x 6409:K 6402:= 6397:G 6381:H 6376:f 6372:, 6367:x 6363:K 6356:+ 6351:G 6341:H 6337:f 6333:, 6328:x 6324:K 6317:= 6312:G 6304:f 6301:, 6296:x 6292:K 6285:= 6282:) 6279:x 6276:( 6273:f 6260:H 6256:G 6252:K 6238:X 6232:x 6206:H 6191:H 6186:f 6165:H 6157:H 6153:f 6124:H 6119:f 6115:+ 6110:H 6106:f 6102:= 6099:f 6089:G 6085:H 6081:G 6067:f 6057:H 6053:G 6046:0 6043:H 6039:G 6025:G 6019:H 5999:} 5996:X 5990:x 5987:: 5982:x 5978:K 5974:{ 5952:G 5941:, 5932:= 5927:H 5916:, 5887:. 5882:G 5872:y 5868:K 5864:, 5859:x 5855:K 5848:= 5845:) 5842:y 5839:, 5836:x 5833:( 5830:K 5827:= 5822:H 5812:y 5808:K 5804:, 5799:x 5795:K 5777:2 5772:X 5768:y 5764:x 5760:K 5756:G 5739:. 5736:) 5733:x 5730:( 5727:f 5724:= 5721:) 5718:x 5715:, 5710:i 5706:x 5702:( 5699:K 5694:i 5690:a 5679:1 5676:= 5673:i 5665:= 5658:0 5654:H 5642:x 5638:K 5634:, 5627:i 5623:x 5618:K 5606:i 5602:a 5591:1 5588:= 5585:i 5577:= 5572:H 5562:x 5558:K 5554:, 5551:f 5534:2 5513:= 5506:0 5502:H 5488:i 5484:x 5479:K 5473:i 5469:a 5463:p 5460:+ 5457:n 5452:n 5449:= 5446:i 5430:0 5424:p 5408:n 5393:) 5390:x 5387:( 5380:i 5376:x 5371:K 5365:i 5361:a 5350:1 5347:= 5344:i 5336:= 5333:) 5330:x 5327:( 5324:f 5311:H 5307:0 5304:H 5296:H 5289:K 5285:K 5267:0 5263:H 5251:y 5247:K 5243:, 5238:x 5234:K 5224:= 5221:) 5218:y 5215:, 5212:x 5209:( 5206:K 5183:, 5180:) 5175:i 5171:x 5167:, 5162:j 5158:y 5154:( 5151:K 5146:j 5142:b 5135:i 5131:a 5124:n 5119:1 5116:= 5113:j 5103:m 5098:1 5095:= 5092:i 5084:= 5077:0 5073:H 5059:i 5055:x 5050:K 5044:i 5040:a 5034:m 5029:1 5026:= 5023:i 5015:, 5008:j 5004:y 4999:K 4993:j 4989:b 4983:n 4978:1 4975:= 4972:j 4948:0 4945:H 4941:X 4937:x 4932:x 4930:K 4926:0 4923:H 4919:x 4917:( 4915:K 4910:x 4908:K 4904:X 4900:x 4889:K 4885:X 4881:X 4873:K 4832:a 4812:) 4809:x 4803:y 4800:( 4777:) 4774:y 4771:( 4766:x 4762:K 4735:x 4731:K 4705:. 4702:) 4699:x 4696:( 4693:f 4690:= 4684:d 4678:x 4672:i 4668:e 4661:) 4655:( 4652:F 4647:a 4642:a 4625:2 4621:1 4616:= 4613:y 4610:d 4600:) 4597:y 4594:( 4589:x 4585:K 4575:) 4572:y 4569:( 4566:f 4545:= 4538:2 4534:L 4523:x 4519:K 4515:, 4512:f 4468:, 4456:0 4449:, 4446:] 4443:a 4440:, 4437:a 4431:[ 4413:x 4407:i 4400:e 4393:{ 4388:= 4385:y 4382:d 4376:y 4370:i 4363:e 4359:) 4356:y 4353:( 4348:x 4344:K 4302:) 4299:y 4296:( 4291:x 4287:K 4263:. 4257:) 4254:x 4248:y 4245:( 4237:) 4234:) 4231:x 4225:y 4222:( 4219:a 4216:( 4204:= 4200:) 4196:) 4193:x 4187:y 4184:( 4176:a 4170:( 4155:a 4150:= 4147:) 4144:y 4141:( 4136:x 4132:K 4106:x 4102:K 4078:H 4055:. 4048:2 4044:L 4035:f 4023:a 4017:= 4009:d 4003:2 3998:| 3993:) 3987:( 3984:F 3980:| 3950:2 3945:a 3942:2 3936:= 3928:d 3922:2 3917:| 3912:) 3906:( 3903:F 3899:| 3893:a 3888:a 3877:a 3874:2 3863:2 3859:1 3850:| 3846:) 3843:x 3840:( 3837:f 3833:| 3809:x 3778:. 3772:d 3763:x 3760:i 3756:e 3752:) 3746:( 3743:F 3738:a 3733:a 3716:2 3712:1 3707:= 3704:) 3701:x 3698:( 3695:f 3656:R 3635:H 3610:R 3589:H 3569:) 3565:R 3561:( 3556:2 3552:L 3528:. 3525:x 3522:d 3512:) 3509:x 3506:( 3503:g 3494:) 3491:x 3488:( 3485:f 3464:= 3457:2 3453:L 3444:g 3441:, 3438:f 3412:f 3388:t 3385:d 3379:t 3373:i 3366:e 3362:) 3359:t 3356:( 3353:f 3332:= 3329:) 3323:( 3320:F 3300:) 3296:R 3292:( 3287:2 3283:L 3259:} 3256:] 3253:a 3250:, 3247:a 3241:[ 3235:) 3232:F 3229:( 3217:) 3213:R 3209:( 3204:2 3200:L 3193:f 3190:{ 3187:= 3184:H 3155:a 3149:0 3126:H 3093:X 3087:} 3084:x 3081:{ 3055:x 3051:K 3030:X 3024:x 3004:X 2960:X 2940:) 2934:, 2931:X 2928:( 2923:2 2919:L 2890:X 2870:K 2850:. 2846:R 2837:n 2833:c 2829:, 2823:, 2818:1 2814:c 2805:, 2802:X 2794:n 2790:x 2786:, 2780:, 2775:1 2771:x 2767:, 2763:N 2756:n 2733:0 2725:2 2720:H 2707:i 2703:x 2698:K 2692:i 2688:c 2682:n 2677:1 2674:= 2671:i 2657:= 2652:H 2639:j 2635:x 2630:K 2624:j 2620:c 2614:n 2609:1 2606:= 2603:j 2595:, 2588:i 2584:x 2579:K 2573:i 2569:c 2563:n 2558:1 2555:= 2552:i 2538:= 2533:H 2520:j 2516:x 2511:K 2505:j 2501:c 2495:n 2490:1 2487:= 2484:j 2476:, 2469:i 2465:x 2460:K 2448:i 2444:c 2438:n 2433:1 2430:= 2427:i 2419:= 2416:) 2411:j 2407:x 2403:, 2398:i 2394:x 2390:( 2387:K 2382:j 2378:c 2372:i 2368:c 2362:n 2357:1 2354:= 2351:j 2348:, 2345:i 2312:C 2290:R 2283:X 2277:X 2274:: 2271:K 2248:. 2243:H 2233:y 2229:K 2222:, 2217:x 2213:K 2206:= 2203:) 2200:y 2197:, 2194:x 2191:( 2188:K 2164:C 2142:R 2135:X 2129:X 2126:: 2123:K 2103:H 2078:y 2074:L 2053:H 2033:H 2025:y 2021:K 1997:, 1992:H 1982:y 1978:K 1971:, 1966:x 1962:K 1955:= 1952:) 1947:x 1943:K 1939:( 1934:y 1930:L 1926:= 1923:) 1920:y 1917:( 1912:x 1908:K 1884:H 1862:x 1858:K 1836:C 1814:R 1793:X 1771:x 1767:K 1751:) 1749:2 1747:( 1730:. 1727:H 1721:f 1712:H 1702:x 1698:K 1691:, 1688:f 1682:= 1679:) 1676:f 1673:( 1668:x 1664:L 1660:= 1657:) 1654:x 1651:( 1648:f 1623:H 1601:x 1597:K 1576:X 1556:x 1532:H 1508:H 1486:x 1482:K 1461:f 1440:H 1429:1 1408:= 1403:x 1399:M 1393:x 1368:X 1362:x 1334:x 1330:M 1314:) 1312:1 1310:( 1292:. 1289:H 1283:f 1274:H 1266:f 1257:x 1253:M 1245:| 1241:) 1238:x 1235:( 1232:f 1228:| 1220:| 1216:) 1213:f 1210:( 1205:x 1201:L 1196:| 1170:0 1162:x 1158:M 1137:H 1111:x 1107:L 1086:H 1066:f 1040:x 1036:L 1015:X 995:x 981:H 964:. 961:H 955:f 944:) 941:x 938:( 935:f 929:f 926:: 921:x 917:L 893:x 873:H 849:X 821:H 797:X 679:x 659:x 646:L 630:0 626:K 612:L 581:n 561:) 558:x 555:( 547:n 544:2 514:| 510:) 507:x 504:( 501:g 495:) 492:x 489:( 486:f 482:| 458:g 438:f 415:g 409:f 386:g 366:f 343:x 323:f 301:x 297:K 274:. 271:) 268:x 265:( 262:f 259:= 251:x 247:K 243:, 240:f 215:H 209:f 189:H 181:x 177:K 156:X 150:x 129:C 107:R 86:X 66:H 46:( 20:)

Index

Reproducing kernel

functional analysis
Hilbert space
functional
parallelogram law
L spaces
Stanisław Zaremba
boundary value problems
harmonic
biharmonic functions
James Mercer
functions
integral equations
Gábor Szegő
Stefan Bergman
Salomon Bochner
Nachman Aronszajn
complex analysis
harmonic analysis
quantum mechanics
statistical learning theory
representer theorem
linear combination
empirical risk minimization
analytic functions
set
Hilbert space
real-valued functions
evaluation

Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.