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Hilbert's basis theorem

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belong to the ideal generated by the preceding ones. Gröbner basis theory implies that this list is necessarily finite, and is thus a finite basis of the ideal. However, for deciding whether the list is complete, one must consider every element of the infinite sequence, which cannot be done in the finite time allowed to an algorithm.
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allow a direct proof that is as constructive as possible: Gröbner bases produce an algorithm for testing whether a polynomial belong to the ideal generated by other polynomials. So, given an infinite sequence of polynomials, one can construct algorithmically the list of those polynomials that do not
122:. For example, the basis theorem asserts that every ideal has a finite generator set, but the original proof does not provide any way to compute it for a specific ideal. This approach was so astonishing for mathematicians of that time that the first version of the article was rejected by 2406: 1167: 3450: 3027: 1646: 1475: 800: 2860: 2538: 1353: 2491: 2450: 3980: 2209: 1238: 126:, the greatest specialist of invariants of that time, with the comment "This is not mathematics. This is theology." Later, he recognized "I have convinced myself that even theology has its merits." 1966: 3501: 880: 1586: 2281: 2930: 3268: 2967: 1720: 607: 3864: 3730: 3178: 3090: 1542: 663: 2711: 1864: 746: 2632: 2075: 1997: 1028: 694: 3912: 3888: 2119: 2021: 1812: 1768: 1744: 962: 3141: 2602: 3312: 2235: 2044: 3659: 2744: 1673: 1505: 938: 911: 4000: 3783: 3761: 3625: 3552: 3524: 3198: 2886: 2652: 2558: 2289: 2095: 1884: 1788: 1261: 1048: 982: 552: 516: 441: 386: 358: 329: 302: 273: 253: 229: 209: 185: 152: 1056: 482:
on the number of variables, and, at each induction step use the non-constructive proof for one variable less. Introduced more than eighty years later,
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and further as the locus of its generators, it follows that every affine variety is the locus of finitely many polynomials — i.e. the
91:, where he solved several problems on invariants. In this article, he proved also two other fundamental theorems on polynomials, the 2455: 2414: 4195: 3917: 2127: 1175: 17: 4003: 1889: 4233: 3465: 809: 4168: 1547: 2240: 118:
Another aspect of this article had a great impact on mathematics of the 20th century; this is the systematic use of
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We will give two proofs, in both only the "left" case is considered; the proof for the right case is similar.
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Note that the only reason we had to split into two cases was to ensure that the powers of
2401:{\displaystyle \left\{f_{i},f_{j}^{(k)}\,:\ i<N,\,j<N^{(k)},\,k<d\right\}\!\!\;.} 8: 4160: 452: 104: 46: 38: 2097:, and so are finitely generated by the leading coefficients of finitely many members of 4081: 3985: 3768: 3746: 3569: 3537: 3509: 3183: 2871: 2637: 2543: 2080: 1869: 1790:, and so is finitely generated by the leading coefficients of finitely many members of 1773: 1246: 1033: 967: 528: 501: 460: 456: 391: 371: 334: 314: 278: 258: 238: 214: 194: 161: 155: 137: 100: 65: 1162:{\displaystyle (a_{0})\subset (a_{0},a_{1})\subset (a_{0},a_{1},a_{2})\subset \cdots } 4191: 4164: 4085: 4073: 4065: 3555: 88: 483: 4154: 523: 519: 92: 69: 42: 4150: 4020: 3631: 883: 96: 4207: 4077: 4051: 3445:{\displaystyle h_{0}=\sum _{j}u_{j}X^{\deg(h)-\deg(f_{j}^{(k)})}f_{j}^{(k)},} 464: 232: 108: 84: 4179: 4016: 3737: 112: 76:
are Noetherian rings. So, the theorem can be generalized and restated as:
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Formal proofs of Hilbert's basis theorem have been verified through the
4069: 3022:{\displaystyle h-h_{0}\in {\mathfrak {a}}\setminus {\mathfrak {a}}^{*}} 1641:{\displaystyle f_{N}-g\in {\mathfrak {a}}\setminus {\mathfrak {b}}_{N}} 188: 1470:{\displaystyle g=\sum _{i<N}u_{i}X^{\deg(f_{N})-\deg(f_{i})}f_{i},} 3559: 795:{\displaystyle f_{n}\in {\mathfrak {a}}\setminus {\mathfrak {b}}_{n}} 609:
is a non-finitely generated left ideal. Then by recursion (using the
2855:{\displaystyle h_{0}=\sum _{j}u_{j}X^{\deg(h)-\deg(f_{j})}f_{j},} 2533:{\displaystyle h\in {\mathfrak {a}}\setminus {\mathfrak {a}}^{*}} 2493:. Suppose for the sake of contradiction this is not so. Then let 1348:{\displaystyle a_{N}=\sum _{i<N}u_{i}a_{i},\qquad u_{i}\in R.} 1241: 73: 61: 3526:
multiplying the factors were non-negative in the constructions.
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every polynomial ring over a Noetherian ring is also Noetherian
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be of minimal degree, and denote its leading coefficient by
2486:{\displaystyle {\mathfrak {a}}\subseteq {\mathfrak {a}}^{*}} 2445:{\displaystyle {\mathfrak {a}}^{*}\subseteq {\mathfrak {a}}} 3975:{\displaystyle {\mathfrak {a}}=(p_{0},\dotsc ,p_{N-1})} 2204:{\displaystyle f_{0}^{(k)},\ldots ,f_{N^{(k)}-1}^{(k)}} 1233:{\displaystyle {\mathfrak {b}}=(a_{0},\ldots ,a_{N-1})} 107:. In particular, the basis theorem implies that every 4175:
The definitive English-language biography of Hilbert.
4054:(1890). "Über die Theorie der algebraischen Formen". 3988: 3920: 3896: 3872: 3793: 3771: 3749: 3667: 3640: 3572: 3540: 3512: 3468: 3326: 3282: 3212: 3186: 3149: 3105: 3035: 2975: 2938: 2894: 2874: 2758: 2725: 2666: 2640: 2610: 2572: 2546: 2499: 2458: 2417: 2292: 2243: 2220: 2130: 2103: 2083: 2052: 2029: 2005: 1974: 1961:{\displaystyle \{\deg(f_{0}),\ldots ,\deg(f_{N-1})\}} 1892: 1872: 1820: 1796: 1776: 1752: 1728: 1689: 1654: 1594: 1550: 1513: 1486: 1367: 1272: 1249: 1178: 1059: 1036: 990: 970: 946: 919: 892: 812: 754: 702: 671: 619: 576: 531: 504: 455:) in the course of his proof of finite generation of 394: 374: 337: 317: 281: 261: 241: 217: 197: 164: 140: 447:
Hilbert proved the theorem (for the special case of
3496:{\displaystyle {\mathfrak {a}}={\mathfrak {a}}^{*}} 875:{\displaystyle \{\deg(f_{0}),\deg(f_{1}),\ldots \}} 3994: 3974: 3906: 3882: 3858: 3777: 3755: 3724: 3653: 3619: 3546: 3518: 3495: 3444: 3306: 3262: 3192: 3172: 3135: 3084: 3021: 2961: 2924: 2880: 2854: 2738: 2705: 2646: 2626: 2596: 2552: 2532: 2485: 2444: 2400: 2275: 2229: 2203: 2113: 2089: 2069: 2038: 2015: 1991: 1960: 1878: 1858: 1806: 1782: 1762: 1738: 1714: 1667: 1640: 1580: 1536: 1499: 1469: 1347: 1255: 1232: 1161: 1042: 1022: 976: 956: 932: 905: 874: 794: 740: 688: 657: 601: 546: 510: 435: 380: 352: 323: 296: 267: 247: 223: 203: 179: 146: 4092: 2393: 2392: 1999:be the set of leading coefficients of members of 1746:be the set of leading coefficients of members of 4205: 1581:{\displaystyle f_{N}\notin {\mathfrak {b}}_{N}} 3458:we yield a similar contradiction as in Case 1. 2276:{\displaystyle {\mathfrak {a}}^{*}\subseteq R} 554:is also a left (resp. right) Noetherian ring. 4046: 4044: 3558:. Hilbert's basis theorem has some immediate 3890:is an ideal. The basis theorem implies that 2925:{\displaystyle h_{0}\in {\mathfrak {a}}^{*}} 1955: 1893: 869: 813: 652: 620: 3263:{\displaystyle a=\sum _{j}u_{j}a_{j}^{(k)}} 2962:{\displaystyle h\notin {\mathfrak {a}}^{*}} 68:whose ideals have this property are called 4041: 2394: 1715:{\displaystyle {\mathfrak {a}}\subseteq R} 602:{\displaystyle {\mathfrak {a}}\subseteq R} 111:is the intersection of a finite number of 3859:{\displaystyle A\simeq R/{\mathfrak {a}}} 2377: 2351: 2332: 275:is Noetherian, the same must be true for 255:is "not too large", in the sense that if 3725:{\displaystyle {\mathfrak {a}}\subset R} 3173:{\displaystyle a\in {\mathfrak {b}}_{k}} 3085:{\displaystyle \deg(h-h_{0})<\deg(h)} 2604:. Regardless of this condition, we have 1537:{\displaystyle g\in {\mathfrak {b}}_{N}} 27:Polynomial ideals are finitely generated 4050: 1480:whose leading term is equal to that of 658:{\displaystyle \{f_{0},f_{1},\ldots \}} 14: 4206: 1770:. This is obviously a left ideal over 4178: 4126: 2706:{\displaystyle a=\sum _{j}u_{j}a_{j}} 1859:{\displaystyle f_{0},\ldots ,f_{N-1}} 741:{\displaystyle f_{0},\ldots ,f_{n-1}} 613:) there is a sequence of polynomials 83:The theorem was stated and proved by 4149: 4110: 4098: 2627:{\displaystyle a\in {\mathfrak {b}}} 3923: 3899: 3875: 3851: 3670: 3482: 3471: 3276:of the leading coefficients of the 3159: 3008: 2997: 2948: 2911: 2868:which has the same leading term as 2619: 2519: 2508: 2472: 2461: 2437: 2421: 2247: 2106: 2070:{\displaystyle {\mathfrak {b}}_{k}} 2056: 2008: 1992:{\displaystyle {\mathfrak {b}}_{k}} 1978: 1799: 1755: 1731: 1692: 1627: 1616: 1567: 1523: 1181: 1023:{\displaystyle a_{0},a_{1},\ldots } 949: 781: 770: 689:{\displaystyle {\mathfrak {b}}_{n}} 675: 579: 24: 4136: 1050:is Noetherian the chain of ideals 87:in 1890 in his seminal article on 25: 4245: 4144:Ideals, Varieties, and Algorithms 4104: 3002: 2513: 1621: 775: 4010: 3914:must be finitely generated, say 2283:be the left ideal generated by: 1675:, contradicting the minimality. 882:is a non-decreasing sequence of 459:. The theorem is interpreted in 3907:{\displaystyle {\mathfrak {a}}} 3883:{\displaystyle {\mathfrak {a}}} 3529: 3092:, which contradicts minimality. 2114:{\displaystyle {\mathfrak {a}}} 2016:{\displaystyle {\mathfrak {a}}} 1807:{\displaystyle {\mathfrak {a}}} 1763:{\displaystyle {\mathfrak {a}}} 1739:{\displaystyle {\mathfrak {b}}} 1678: 1325: 957:{\displaystyle {\mathfrak {b}}} 696:is the left ideal generated by 471:of finitely many polynomials. 72:. Every field, and the ring of 4120: 3969: 3931: 3841: 3803: 3719: 3681: 3614: 3576: 3434: 3428: 3413: 3408: 3402: 3389: 3377: 3371: 3299: 3293: 3255: 3249: 3136:{\displaystyle \deg(h)=k<d} 3118: 3112: 3079: 3073: 3061: 3042: 2834: 2821: 2809: 2803: 2585: 2579: 2369: 2363: 2327: 2321: 2270: 2264: 2196: 2190: 2177: 2171: 2147: 2141: 1952: 1933: 1915: 1902: 1709: 1703: 1449: 1436: 1424: 1411: 1227: 1189: 1150: 1111: 1105: 1079: 1073: 1060: 913:be the leading coefficient of 860: 847: 835: 822: 596: 590: 565: 541: 535: 430: 398: 347: 341: 291: 285: 174: 168: 13: 1: 4188:Graduate Texts in Mathematics 4034: 3503:which is finitely generated. 2597:{\displaystyle \deg(h)\geq d} 95:(zero-locus theorem) and the 4190:(Third ed.), Springer, 3200:is a left linear combination 2654:is a left linear combination 129: 7: 3307:{\displaystyle f_{j}^{(k)}} 2719:of the coefficients of the 388:is a Noetherian ring, then 331:is a Noetherian ring, then 57:in Hilbert's terminology). 10: 4250: 4234:Theorems about polynomials 3462:Thus our claim holds, and 1886:be the maximum of the set 474:Hilbert's proof is highly 4142:Cox, Little, and O'Shea, 3566:By induction we see that 611:axiom of dependent choice 467:is the set of the common 4146:, Springer-Verlag, 1997. 3627:will also be Noetherian. 518:is a left (resp. right) 490: 449:multivariate polynomials 309:Hilbert's Basis Theorem. 120:non-constructive methods 4224:Theorems in ring theory 4184:Advanced Linear Algebra 4129:, p. 136 §5 Theorem 5.9 35:Hilbert's basis theorem 4029:ring_theory.polynomial 3996: 3976: 3908: 3884: 3860: 3779: 3757: 3726: 3655: 3621: 3548: 3520: 3497: 3446: 3308: 3264: 3194: 3174: 3137: 3086: 3023: 2963: 2926: 2882: 2856: 2740: 2707: 2648: 2628: 2598: 2554: 2534: 2487: 2446: 2402: 2277: 2231: 2230:{\displaystyle \leq k} 2205: 2115: 2091: 2071: 2040: 2039:{\displaystyle \leq k} 2017: 1993: 1962: 1880: 1860: 1808: 1784: 1764: 1740: 1716: 1669: 1642: 1582: 1538: 1501: 1471: 1349: 1257: 1234: 1163: 1044: 1024: 978: 958: 934: 907: 876: 796: 742: 690: 659: 603: 548: 512: 445: 437: 382: 362: 354: 325: 298: 269: 249: 225: 205: 181: 148: 4057:Mathematische Annalen 3997: 3977: 3909: 3885: 3861: 3780: 3758: 3727: 3656: 3654:{\displaystyle R^{n}} 3622: 3549: 3521: 3498: 3447: 3309: 3265: 3195: 3175: 3138: 3087: 3024: 2964: 2927: 2883: 2857: 2741: 2739:{\displaystyle f_{j}} 2708: 2649: 2629: 2599: 2555: 2535: 2488: 2447: 2403: 2278: 2232: 2206: 2116: 2092: 2077:are left ideals over 2072: 2041: 2018: 1994: 1963: 1881: 1861: 1809: 1785: 1765: 1741: 1722:be a left ideal. Let 1717: 1670: 1668:{\displaystyle f_{N}} 1648:has degree less than 1643: 1583: 1539: 1502: 1500:{\displaystyle f_{N}} 1472: 1350: 1258: 1235: 1172:must terminate. Thus 1164: 1045: 1025: 979: 964:be the left ideal in 959: 935: 933:{\displaystyle f_{n}} 908: 906:{\displaystyle a_{n}} 877: 797: 743: 691: 660: 604: 549: 513: 443:is a Noetherian ring. 438: 383: 363: 360:is a Noetherian ring. 355: 326: 306: 299: 270: 250: 226: 206: 191:in the indeterminate 182: 149: 18:Hilbert Basis Theorem 3986: 3918: 3894: 3870: 3791: 3787:, then we know that 3769: 3747: 3665: 3638: 3570: 3538: 3510: 3466: 3324: 3280: 3210: 3184: 3147: 3103: 3033: 2973: 2936: 2892: 2872: 2756: 2723: 2664: 2638: 2608: 2570: 2544: 2497: 2456: 2415: 2290: 2241: 2218: 2128: 2101: 2081: 2050: 2027: 2003: 1972: 1890: 1870: 1818: 1794: 1774: 1750: 1726: 1687: 1652: 1592: 1548: 1511: 1484: 1365: 1270: 1263:. So in particular, 1247: 1176: 1057: 1034: 988: 968: 944: 917: 890: 810: 806:. By construction, 752: 700: 669: 617: 574: 529: 502: 392: 372: 335: 315: 279: 259: 239: 215: 195: 162: 138: 4214:Commutative algebra 3765:finitely-generated 3438: 3412: 3303: 3259: 2331: 2200: 2151: 1588:, which means that 457:rings of invariants 187:denote the ring of 105:commutative algebra 37:asserts that every 4070:10.1007/BF01208503 4004:finitely presented 3992: 3972: 3904: 3880: 3856: 3775: 3753: 3722: 3651: 3617: 3544: 3516: 3493: 3442: 3418: 3392: 3349: 3304: 3283: 3260: 3239: 3228: 3190: 3170: 3133: 3082: 3019: 2959: 2922: 2878: 2852: 2781: 2736: 2703: 2682: 2644: 2624: 2594: 2550: 2530: 2483: 2442: 2398: 2311: 2273: 2227: 2201: 2161: 2131: 2111: 2087: 2067: 2036: 2023:, whose degree is 2013: 1989: 1958: 1876: 1856: 1804: 1780: 1760: 1736: 1712: 1665: 1638: 1578: 1534: 1497: 1467: 1389: 1345: 1301: 1253: 1230: 1159: 1040: 1020: 974: 954: 930: 903: 872: 792: 738: 686: 655: 599: 544: 508: 463:as follows: every 461:algebraic geometry 433: 378: 350: 321: 294: 265: 245: 221: 201: 177: 144: 101:algebraic geometry 4197:978-0-387-72828-5 3995:{\displaystyle A} 3778:{\displaystyle R} 3756:{\displaystyle A} 3736:of finitely many 3620:{\displaystyle R} 3547:{\displaystyle R} 3519:{\displaystyle X} 3340: 3219: 3193:{\displaystyle a} 2881:{\displaystyle h} 2772: 2673: 2647:{\displaystyle a} 2553:{\displaystyle a} 2338: 2090:{\displaystyle R} 2046:. As before, the 1879:{\displaystyle d} 1783:{\displaystyle R} 1374: 1286: 1256:{\displaystyle N} 1043:{\displaystyle R} 977:{\displaystyle R} 547:{\displaystyle R} 511:{\displaystyle R} 478:: it proceeds by 436:{\displaystyle R} 381:{\displaystyle R} 353:{\displaystyle R} 324:{\displaystyle R} 297:{\displaystyle R} 268:{\displaystyle R} 248:{\displaystyle R} 224:{\displaystyle R} 204:{\displaystyle X} 180:{\displaystyle R} 147:{\displaystyle R} 16:(Redirected from 4241: 4219:Invariant theory 4200: 4174: 4151:Reid, Constance. 4130: 4124: 4118: 4108: 4102: 4096: 4090: 4089: 4048: 4001: 3999: 3998: 3993: 3981: 3979: 3978: 3973: 3968: 3967: 3943: 3942: 3927: 3926: 3913: 3911: 3910: 3905: 3903: 3902: 3889: 3887: 3886: 3881: 3879: 3878: 3865: 3863: 3862: 3857: 3855: 3854: 3848: 3840: 3839: 3815: 3814: 3784: 3782: 3781: 3776: 3762: 3760: 3759: 3754: 3731: 3729: 3728: 3723: 3718: 3717: 3693: 3692: 3674: 3673: 3660: 3658: 3657: 3652: 3650: 3649: 3626: 3624: 3623: 3618: 3613: 3612: 3588: 3587: 3556:commutative ring 3554:be a Noetherian 3553: 3551: 3550: 3545: 3525: 3523: 3522: 3517: 3502: 3500: 3499: 3494: 3492: 3491: 3486: 3485: 3475: 3474: 3451: 3449: 3448: 3443: 3437: 3426: 3417: 3416: 3411: 3400: 3359: 3358: 3348: 3336: 3335: 3313: 3311: 3310: 3305: 3302: 3291: 3269: 3267: 3266: 3261: 3258: 3247: 3238: 3237: 3227: 3199: 3197: 3196: 3191: 3179: 3177: 3176: 3171: 3169: 3168: 3163: 3162: 3142: 3140: 3139: 3134: 3091: 3089: 3088: 3083: 3060: 3059: 3028: 3026: 3025: 3020: 3018: 3017: 3012: 3011: 3001: 3000: 2991: 2990: 2968: 2966: 2965: 2960: 2958: 2957: 2952: 2951: 2931: 2929: 2928: 2923: 2921: 2920: 2915: 2914: 2904: 2903: 2887: 2885: 2884: 2879: 2861: 2859: 2858: 2853: 2848: 2847: 2838: 2837: 2833: 2832: 2791: 2790: 2780: 2768: 2767: 2745: 2743: 2742: 2737: 2735: 2734: 2712: 2710: 2709: 2704: 2702: 2701: 2692: 2691: 2681: 2653: 2651: 2650: 2645: 2633: 2631: 2630: 2625: 2623: 2622: 2603: 2601: 2600: 2595: 2559: 2557: 2556: 2551: 2539: 2537: 2536: 2531: 2529: 2528: 2523: 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384: 379: 359: 357: 356: 351: 330: 328: 327: 322: 303: 301: 300: 295: 274: 272: 271: 266: 254: 252: 251: 246: 230: 228: 227: 222: 210: 208: 207: 202: 186: 184: 183: 178: 153: 151: 150: 145: 89:invariant theory 70:Noetherian rings 21: 4249: 4248: 4244: 4243: 4242: 4240: 4239: 4238: 4204: 4203: 4198: 4171: 4139: 4137:Further reading 4134: 4133: 4125: 4121: 4109: 4105: 4097: 4093: 4049: 4042: 4037: 4013: 3987: 3984: 3983: 3957: 3953: 3938: 3934: 3922: 3921: 3919: 3916: 3915: 3898: 3897: 3895: 3892: 3891: 3874: 3873: 3871: 3868: 3867: 3850: 3849: 3844: 3829: 3825: 3810: 3806: 3792: 3789: 3788: 3770: 3767: 3766: 3748: 3745: 3744: 3707: 3703: 3688: 3684: 3669: 3668: 3666: 3663: 3662: 3645: 3641: 3639: 3636: 3635: 3602: 3598: 3583: 3579: 3571: 3568: 3567: 3539: 3536: 3535: 3532: 3511: 3508: 3507: 3487: 3481: 3480: 3479: 3470: 3469: 3467: 3464: 3463: 3427: 3422: 3401: 3396: 3364: 3360: 3354: 3350: 3344: 3331: 3327: 3325: 3322: 3321: 3292: 3287: 3281: 3278: 3277: 3248: 3243: 3233: 3229: 3223: 3211: 3208: 3207: 3185: 3182: 3181: 3164: 3158: 3157: 3156: 3148: 3145: 3144: 3104: 3101: 3100: 3055: 3051: 3034: 3031: 3030: 3013: 3007: 3006: 3005: 2996: 2995: 2986: 2982: 2974: 2971: 2970: 2953: 2947: 2946: 2945: 2937: 2934: 2933: 2916: 2910: 2909: 2908: 2899: 2895: 2893: 2890: 2889: 2873: 2870: 2869: 2843: 2839: 2828: 2824: 2796: 2792: 2786: 2782: 2776: 2763: 2759: 2757: 2754: 2753: 2730: 2726: 2724: 2721: 2720: 2697: 2693: 2687: 2683: 2677: 2665: 2662: 2661: 2639: 2636: 2635: 2618: 2617: 2609: 2606: 2605: 2571: 2568: 2567: 2545: 2542: 2541: 2524: 2518: 2517: 2516: 2507: 2506: 2498: 2495: 2494: 2477: 2471: 2470: 2469: 2460: 2459: 2457: 2454: 2453: 2452:and claim also 2436: 2435: 2426: 2420: 2419: 2418: 2416: 2413: 2412: 2362: 2358: 2320: 2315: 2302: 2298: 2297: 2293: 2291: 2288: 2287: 2252: 2246: 2245: 2244: 2242: 2239: 2238: 2219: 2216: 2215: 2189: 2170: 2166: 2165: 2140: 2135: 2129: 2126: 2125: 2105: 2104: 2102: 2099: 2098: 2082: 2079: 2078: 2061: 2055: 2054: 2053: 2051: 2048: 2047: 2028: 2025: 2024: 2007: 2006: 2004: 2001: 2000: 1983: 1977: 1976: 1975: 1973: 1970: 1969: 1940: 1936: 1909: 1905: 1891: 1888: 1887: 1871: 1868: 1867: 1844: 1840: 1825: 1821: 1819: 1816: 1815: 1798: 1797: 1795: 1792: 1791: 1775: 1772: 1771: 1754: 1753: 1751: 1748: 1747: 1730: 1729: 1727: 1724: 1723: 1691: 1690: 1688: 1685: 1684: 1681: 1659: 1655: 1653: 1650: 1649: 1632: 1626: 1625: 1624: 1615: 1614: 1599: 1595: 1593: 1590: 1589: 1572: 1566: 1565: 1564: 1555: 1551: 1549: 1546: 1545: 1528: 1522: 1521: 1520: 1512: 1509: 1508: 1491: 1487: 1485: 1482: 1481: 1458: 1454: 1443: 1439: 1418: 1414: 1404: 1400: 1394: 1390: 1378: 1366: 1363: 1362: 1330: 1326: 1316: 1312: 1306: 1302: 1290: 1277: 1273: 1271: 1268: 1267: 1248: 1245: 1244: 1215: 1211: 1196: 1192: 1180: 1179: 1177: 1174: 1173: 1144: 1140: 1131: 1127: 1118: 1114: 1099: 1095: 1086: 1082: 1067: 1063: 1058: 1055: 1054: 1035: 1032: 1031: 1008: 1004: 995: 991: 989: 986: 985: 969: 966: 965: 948: 947: 945: 942: 941: 924: 920: 918: 915: 914: 897: 893: 891: 888: 887: 884:natural numbers 854: 850: 829: 825: 811: 808: 807: 786: 780: 779: 778: 769: 768: 759: 755: 753: 750: 749: 726: 722: 707: 703: 701: 698: 697: 680: 674: 673: 672: 670: 667: 666: 640: 636: 627: 623: 618: 615: 614: 578: 577: 575: 572: 571: 568: 530: 527: 526: 524:polynomial ring 520:Noetherian ring 503: 500: 499: 493: 424: 420: 405: 401: 393: 390: 389: 373: 370: 369: 336: 333: 332: 316: 313: 312: 280: 277: 276: 260: 257: 256: 240: 237: 236: 235:proved that if 216: 213: 212: 196: 193: 192: 163: 160: 159: 139: 136: 135: 132: 93:Nullstellensatz 43:polynomial ring 28: 23: 22: 15: 12: 11: 5: 4247: 4237: 4236: 4231: 4226: 4221: 4216: 4202: 4201: 4196: 4180:Roman, Stephen 4176: 4169: 4147: 4138: 4135: 4132: 4131: 4119: 4103: 4091: 4064:(4): 473–534. 4052:Hilbert, David 4039: 4038: 4036: 4033: 4012: 4009: 4008: 4007: 3991: 3971: 3966: 3963: 3960: 3956: 3952: 3949: 3946: 3941: 3937: 3933: 3930: 3925: 3901: 3877: 3853: 3847: 3843: 3838: 3835: 3832: 3828: 3824: 3821: 3818: 3813: 3809: 3805: 3802: 3799: 3796: 3774: 3752: 3741: 3721: 3716: 3713: 3710: 3706: 3702: 3699: 3696: 3691: 3687: 3683: 3680: 3677: 3672: 3648: 3644: 3632:affine variety 3628: 3616: 3611: 3608: 3605: 3601: 3597: 3594: 3591: 3586: 3582: 3578: 3575: 3543: 3531: 3528: 3515: 3490: 3484: 3478: 3473: 3460: 3459: 3455: 3454: 3453: 3452: 3441: 3436: 3433: 3430: 3425: 3421: 3415: 3410: 3407: 3404: 3399: 3395: 3391: 3388: 3385: 3382: 3379: 3376: 3373: 3370: 3367: 3363: 3357: 3353: 3347: 3343: 3339: 3334: 3330: 3316: 3315: 3301: 3298: 3295: 3290: 3286: 3273: 3272: 3271: 3270: 3257: 3254: 3251: 3246: 3242: 3236: 3232: 3226: 3222: 3218: 3215: 3202: 3201: 3189: 3167: 3161: 3155: 3152: 3132: 3129: 3126: 3123: 3120: 3117: 3114: 3111: 3108: 3094: 3093: 3081: 3078: 3075: 3072: 3069: 3066: 3063: 3058: 3054: 3050: 3047: 3044: 3041: 3038: 3016: 3010: 3004: 2999: 2994: 2989: 2985: 2981: 2978: 2956: 2950: 2944: 2941: 2919: 2913: 2907: 2902: 2898: 2877: 2865: 2864: 2863: 2862: 2851: 2846: 2842: 2836: 2831: 2827: 2823: 2820: 2817: 2814: 2811: 2808: 2805: 2802: 2799: 2795: 2789: 2785: 2779: 2775: 2771: 2766: 2762: 2748: 2747: 2733: 2729: 2716: 2715: 2714: 2713: 2700: 2696: 2690: 2686: 2680: 2676: 2672: 2669: 2656: 2655: 2643: 2621: 2616: 2613: 2593: 2590: 2587: 2584: 2581: 2578: 2575: 2549: 2527: 2521: 2515: 2510: 2505: 2502: 2480: 2474: 2468: 2463: 2439: 2434: 2429: 2423: 2409: 2408: 2397: 2390: 2386: 2383: 2380: 2376: 2371: 2368: 2365: 2361: 2357: 2354: 2350: 2347: 2344: 2341: 2335: 2329: 2326: 2323: 2318: 2314: 2310: 2305: 2301: 2296: 2272: 2269: 2266: 2263: 2260: 2255: 2249: 2226: 2223: 2212: 2211: 2198: 2195: 2192: 2187: 2184: 2179: 2176: 2173: 2169: 2164: 2160: 2157: 2154: 2149: 2146: 2143: 2138: 2134: 2108: 2086: 2064: 2058: 2035: 2032: 2010: 1986: 1980: 1957: 1954: 1949: 1946: 1943: 1939: 1935: 1932: 1929: 1926: 1923: 1920: 1917: 1912: 1908: 1904: 1901: 1898: 1895: 1875: 1853: 1850: 1847: 1843: 1839: 1836: 1833: 1828: 1824: 1801: 1779: 1757: 1733: 1711: 1708: 1705: 1702: 1699: 1694: 1680: 1677: 1662: 1658: 1635: 1629: 1623: 1618: 1613: 1610: 1607: 1602: 1598: 1575: 1569: 1563: 1558: 1554: 1531: 1525: 1519: 1516: 1494: 1490: 1478: 1477: 1466: 1461: 1457: 1451: 1446: 1442: 1438: 1435: 1432: 1429: 1426: 1421: 1417: 1413: 1410: 1407: 1403: 1397: 1393: 1387: 1384: 1381: 1377: 1373: 1370: 1356: 1355: 1344: 1341: 1338: 1333: 1329: 1324: 1319: 1315: 1309: 1305: 1299: 1296: 1293: 1289: 1285: 1280: 1276: 1252: 1229: 1224: 1221: 1218: 1214: 1210: 1207: 1204: 1199: 1195: 1191: 1188: 1183: 1170: 1169: 1158: 1155: 1152: 1147: 1143: 1139: 1134: 1130: 1126: 1121: 1117: 1113: 1110: 1107: 1102: 1098: 1094: 1089: 1085: 1081: 1078: 1075: 1070: 1066: 1062: 1039: 1019: 1016: 1011: 1007: 1003: 998: 994: 973: 951: 927: 923: 900: 896: 871: 868: 865: 862: 857: 853: 849: 846: 843: 840: 837: 832: 828: 824: 821: 818: 815: 802:is of minimal 789: 783: 777: 772: 767: 762: 758: 735: 732: 729: 725: 721: 718: 715: 710: 706: 683: 677: 654: 651: 648: 643: 639: 635: 630: 626: 622: 598: 595: 592: 589: 586: 581: 567: 564: 563: 562: 543: 540: 537: 534: 507: 492: 489: 432: 427: 423: 419: 416: 413: 408: 404: 400: 397: 377: 349: 346: 343: 340: 320: 293: 290: 287: 284: 264: 244: 220: 200: 176: 173: 170: 167: 143: 131: 128: 97:syzygy theorem 51:generating set 26: 9: 6: 4: 3: 2: 4246: 4235: 4232: 4230: 4229:David Hilbert 4227: 4225: 4222: 4220: 4217: 4215: 4212: 4211: 4209: 4199: 4193: 4189: 4185: 4181: 4177: 4172: 4170:0-387-94674-8 4166: 4162: 4158: 4157: 4152: 4148: 4145: 4141: 4140: 4128: 4123: 4116: 4112: 4107: 4101:, p. 34. 4100: 4095: 4087: 4083: 4079: 4075: 4071: 4067: 4063: 4059: 4058: 4053: 4047: 4045: 4040: 4032: 4030: 4026: 4022: 4021:HILBASIS file 4018: 4017:Mizar project 4011:Formal proofs 4005: 3989: 3964: 3961: 3958: 3954: 3950: 3947: 3944: 3939: 3935: 3928: 3845: 3836: 3833: 3830: 3826: 3822: 3819: 3816: 3811: 3807: 3800: 3797: 3794: 3786: 3772: 3750: 3742: 3739: 3738:hypersurfaces 3735: 3714: 3711: 3708: 3704: 3700: 3697: 3694: 3689: 3685: 3678: 3675: 3646: 3642: 3633: 3629: 3609: 3606: 3603: 3599: 3595: 3592: 3589: 3584: 3580: 3573: 3565: 3564: 3563: 3561: 3557: 3541: 3527: 3513: 3504: 3488: 3476: 3457: 3456: 3439: 3431: 3423: 3419: 3405: 3397: 3393: 3386: 3383: 3380: 3374: 3368: 3365: 3361: 3355: 3351: 3345: 3341: 3337: 3332: 3328: 3320: 3319: 3318: 3317: 3314:. Considering 3296: 3288: 3284: 3275: 3274: 3252: 3244: 3240: 3234: 3230: 3224: 3220: 3216: 3213: 3206: 3205: 3204: 3203: 3187: 3165: 3153: 3150: 3130: 3127: 3124: 3121: 3115: 3109: 3106: 3099: 3096: 3095: 3076: 3070: 3067: 3064: 3056: 3052: 3048: 3045: 3039: 3036: 3014: 2992: 2987: 2983: 2979: 2976: 2954: 2942: 2939: 2917: 2905: 2900: 2896: 2875: 2867: 2866: 2849: 2844: 2840: 2829: 2825: 2818: 2815: 2812: 2806: 2800: 2797: 2793: 2787: 2783: 2777: 2773: 2769: 2764: 2760: 2752: 2751: 2750: 2749: 2731: 2727: 2718: 2717: 2698: 2694: 2688: 2684: 2678: 2674: 2670: 2667: 2660: 2659: 2658: 2657: 2641: 2614: 2611: 2591: 2588: 2582: 2576: 2573: 2566: 2563: 2562: 2561: 2547: 2525: 2503: 2500: 2478: 2466: 2432: 2427: 2395: 2388: 2384: 2381: 2378: 2374: 2366: 2359: 2355: 2352: 2348: 2345: 2342: 2339: 2333: 2324: 2316: 2312: 2308: 2303: 2299: 2294: 2286: 2285: 2284: 2267: 2261: 2258: 2253: 2224: 2221: 2214:with degrees 2193: 2185: 2182: 2174: 2167: 2162: 2158: 2155: 2152: 2144: 2136: 2132: 2124: 2123: 2122: 2084: 2062: 2033: 2030: 1984: 1947: 1944: 1941: 1937: 1930: 1927: 1924: 1921: 1918: 1910: 1906: 1899: 1896: 1873: 1851: 1848: 1845: 1841: 1837: 1834: 1831: 1826: 1822: 1777: 1706: 1700: 1697: 1676: 1660: 1656: 1633: 1611: 1608: 1605: 1600: 1596: 1573: 1561: 1556: 1552: 1529: 1517: 1514: 1492: 1488: 1464: 1459: 1455: 1444: 1440: 1433: 1430: 1427: 1419: 1415: 1408: 1405: 1401: 1395: 1391: 1385: 1382: 1379: 1375: 1371: 1368: 1361: 1360: 1359: 1358:Now consider 1342: 1339: 1336: 1331: 1327: 1322: 1317: 1313: 1307: 1303: 1297: 1294: 1291: 1287: 1283: 1278: 1274: 1266: 1265: 1264: 1250: 1243: 1222: 1219: 1216: 1212: 1208: 1205: 1202: 1197: 1193: 1186: 1156: 1153: 1145: 1141: 1137: 1132: 1128: 1124: 1119: 1115: 1108: 1100: 1096: 1092: 1087: 1083: 1076: 1068: 1064: 1053: 1052: 1051: 1037: 1017: 1014: 1009: 1005: 1001: 996: 992: 984:generated by 971: 925: 921: 898: 894: 885: 866: 863: 855: 851: 844: 841: 838: 830: 826: 819: 816: 805: 787: 765: 760: 756: 733: 730: 727: 723: 719: 716: 713: 708: 704: 681: 665:such that if 649: 646: 641: 637: 633: 628: 624: 612: 593: 587: 584: 560: 557: 556: 555: 538: 532: 525: 521: 505: 497: 488: 485: 484:Gröbner bases 481: 477: 472: 470: 466: 465:algebraic set 462: 458: 454: 450: 444: 425: 421: 417: 414: 411: 406: 402: 395: 375: 367: 361: 344: 338: 318: 310: 305: 288: 282: 262: 242: 234: 218: 198: 190: 171: 165: 157: 141: 127: 125: 121: 116: 114: 113:hypersurfaces 110: 109:algebraic set 106: 102: 98: 94: 90: 86: 85:David Hilbert 81: 79: 75: 71: 67: 63: 58: 56: 52: 49:has a finite 48: 44: 40: 36: 33: 19: 4183: 4159:. New York: 4155: 4143: 4122: 4106: 4094: 4061: 4055: 4014: 3734:intersection 3533: 3530:Applications 3505: 3461: 3097: 2969:. Therefore 2564: 2410: 2213: 1682: 1679:Second proof 1507:; moreover, 1479: 1357: 1171: 569: 558: 495: 494: 473: 446: 365: 364: 308: 307: 304:. Formally, 133: 117: 103:in terms of 82: 77: 59: 54: 34: 29: 3560:corollaries 2888:; moreover 1544:. However, 566:First proof 522:, then the 189:polynomials 124:Paul Gordan 32:mathematics 4208:Categories 4127:Roman 2008 4113:, p.  4035:References 3630:Since any 2746:. Consider 2237:. Now let 1968:, and let 366:Corollary. 60:In modern 53:(a finite 4111:Reid 1996 4099:Reid 1996 4086:179177713 4078:0025-5831 3962:− 3948:… 3834:− 3820:… 3798:≃ 3712:− 3698:… 3676:⊂ 3607:− 3593:… 3489:∗ 3387:⁡ 3381:− 3369:⁡ 3342:∑ 3221:∑ 3154:∈ 3110:⁡ 3071:⁡ 3049:− 3040:⁡ 3015:∗ 3003:∖ 2993:∈ 2980:− 2955:∗ 2943:∉ 2918:∗ 2906:∈ 2819:⁡ 2813:− 2801:⁡ 2774:∑ 2675:∑ 2615:∈ 2589:≥ 2577:⁡ 2526:∗ 2514:∖ 2504:∈ 2479:∗ 2467:⊆ 2433:⊆ 2428:∗ 2259:⊆ 2254:∗ 2222:≤ 2183:− 2156:… 2031:≤ 1945:− 1931:⁡ 1922:… 1900:⁡ 1849:− 1835:… 1698:⊆ 1622:∖ 1612:∈ 1606:− 1562:∉ 1518:∈ 1434:⁡ 1428:− 1409:⁡ 1376:∑ 1337:∈ 1288:∑ 1240:for some 1220:− 1206:… 1157:⋯ 1154:⊂ 1109:⊂ 1077:⊂ 1018:… 867:… 845:⁡ 820:⁡ 776:∖ 766:∈ 731:− 717:… 650:… 585:⊆ 480:induction 415:… 130:Statement 4182:(2008), 4161:Springer 4153:(1996). 3866:, where 3785:-algebra 2411:We have 1030:. Since 940:and let 570:Suppose 496:Theorem. 74:integers 4156:Hilbert 3982:, i.e. 3143:. Then 3098:Case 2: 2565:Case 1: 1242:integer 559:Remark. 451:over a 233:Hilbert 62:algebra 45:over a 4194:  4167:  4084:  4076:  4023:) and 2932:while 2337:  2121:, say 1866:. Let 1814:; say 886:. Let 804:degree 158:, let 4082:S2CID 4027:(see 4019:(see 3763:is a 3634:over 2634:, so 748:then 491:Proof 469:zeros 453:field 211:over 154:is a 66:rings 55:basis 47:field 41:of a 39:ideal 4192:ISBN 4165:ISBN 4074:ISSN 4025:Lean 3534:Let 3128:< 3065:< 3029:and 2382:< 2356:< 2343:< 1683:Let 1383:< 1295:< 156:ring 4066:doi 4031:). 4002:is 3743:If 3384:deg 3366:deg 3180:so 3107:deg 3068:deg 3037:deg 2816:deg 2798:deg 2574:deg 1928:deg 1897:deg 1431:deg 1406:deg 842:deg 817:deg 498:If 368:If 311:If 134:If 30:In 4210:: 4186:, 4163:. 4115:37 4080:. 4072:. 4062:36 4060:. 4043:^ 3562:. 2560:. 231:. 115:. 80:. 64:, 4173:. 4117:. 4088:. 4068:: 4006:. 3990:A 3970:) 3965:1 3959:N 3955:p 3951:, 3945:, 3940:0 3936:p 3932:( 3929:= 3924:a 3900:a 3876:a 3852:a 3846:/ 3842:] 3837:1 3831:n 3827:X 3823:, 3817:, 3812:0 3808:X 3804:[ 3801:R 3795:A 3773:R 3751:A 3740:. 3720:] 3715:1 3709:n 3705:X 3701:, 3695:, 3690:0 3686:X 3682:[ 3679:R 3671:a 3647:n 3643:R 3615:] 3610:1 3604:n 3600:X 3596:, 3590:, 3585:0 3581:X 3577:[ 3574:R 3542:R 3514:X 3483:a 3477:= 3472:a 3440:, 3435:) 3432:k 3429:( 3424:j 3420:f 3414:) 3409:) 3406:k 3403:( 3398:j 3394:f 3390:( 3378:) 3375:h 3372:( 3362:X 3356:j 3352:u 3346:j 3338:= 3333:0 3329:h 3300:) 3297:k 3294:( 3289:j 3285:f 3256:) 3253:k 3250:( 3245:j 3241:a 3235:j 3231:u 3225:j 3217:= 3214:a 3188:a 3166:k 3160:b 3151:a 3131:d 3125:k 3122:= 3119:) 3116:h 3113:( 3080:) 3077:h 3074:( 3062:) 3057:0 3053:h 3046:h 3043:( 3009:a 2998:a 2988:0 2984:h 2977:h 2949:a 2940:h 2912:a 2901:0 2897:h 2876:h 2850:, 2845:j 2841:f 2835:) 2830:j 2826:f 2822:( 2810:) 2807:h 2804:( 2794:X 2788:j 2784:u 2778:j 2770:= 2765:0 2761:h 2732:j 2728:f 2699:j 2695:a 2689:j 2685:u 2679:j 2671:= 2668:a 2642:a 2620:b 2612:a 2592:d 2586:) 2583:h 2580:( 2548:a 2520:a 2509:a 2501:h 2473:a 2462:a 2438:a 2422:a 2396:. 2389:} 2385:d 2379:k 2375:, 2370:) 2367:k 2364:( 2360:N 2353:j 2349:, 2346:N 2340:i 2334:: 2328:) 2325:k 2322:( 2317:j 2313:f 2309:, 2304:i 2300:f 2295:{ 2271:] 2268:X 2265:[ 2262:R 2248:a 2225:k 2197:) 2194:k 2191:( 2186:1 2178:) 2175:k 2172:( 2168:N 2163:f 2159:, 2153:, 2148:) 2145:k 2142:( 2137:0 2133:f 2107:a 2085:R 2063:k 2057:b 2034:k 2009:a 1985:k 1979:b 1956:} 1953:) 1948:1 1942:N 1938:f 1934:( 1925:, 1919:, 1916:) 1911:0 1907:f 1903:( 1894:{ 1874:d 1852:1 1846:N 1842:f 1838:, 1832:, 1827:0 1823:f 1800:a 1778:R 1756:a 1732:b 1710:] 1707:X 1704:[ 1701:R 1693:a 1661:N 1657:f 1634:N 1628:b 1617:a 1609:g 1601:N 1597:f 1574:N 1568:b 1557:N 1553:f 1530:N 1524:b 1515:g 1493:N 1489:f 1465:, 1460:i 1456:f 1450:) 1445:i 1441:f 1437:( 1425:) 1420:N 1416:f 1412:( 1402:X 1396:i 1392:u 1386:N 1380:i 1372:= 1369:g 1343:. 1340:R 1332:i 1328:u 1323:, 1318:i 1314:a 1308:i 1304:u 1298:N 1292:i 1284:= 1279:N 1275:a 1251:N 1228:) 1223:1 1217:N 1213:a 1209:, 1203:, 1198:0 1194:a 1190:( 1187:= 1182:b 1151:) 1146:2 1142:a 1138:, 1133:1 1129:a 1125:, 1120:0 1116:a 1112:( 1106:) 1101:1 1097:a 1093:, 1088:0 1084:a 1080:( 1074:) 1069:0 1065:a 1061:( 1038:R 1015:, 1010:1 1006:a 1002:, 997:0 993:a 972:R 950:b 926:n 922:f 899:n 895:a 870:} 864:, 861:) 856:1 852:f 848:( 839:, 836:) 831:0 827:f 823:( 814:{ 788:n 782:b 771:a 761:n 757:f 734:1 728:n 724:f 720:, 714:, 709:0 705:f 682:n 676:b 653:} 647:, 642:1 638:f 634:, 629:0 625:f 621:{ 597:] 594:X 591:[ 588:R 580:a 542:] 539:X 536:[ 533:R 506:R 431:] 426:n 422:X 418:, 412:, 407:1 403:X 399:[ 396:R 376:R 348:] 345:X 342:[ 339:R 319:R 292:] 289:X 286:[ 283:R 263:R 243:R 219:R 199:X 175:] 172:X 169:[ 166:R 142:R 20:)

Index

Hilbert Basis Theorem
mathematics
ideal
polynomial ring
field
generating set
algebra
rings
Noetherian rings
integers
David Hilbert
invariant theory
Nullstellensatz
syzygy theorem
algebraic geometry
commutative algebra
algebraic set
hypersurfaces
non-constructive methods
Paul Gordan
ring
polynomials
Hilbert
multivariate polynomials
field
rings of invariants
algebraic geometry
algebraic set
zeros
non-constructive

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