Knowledge

Rodion Kuzmin

Source šŸ“

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Atti del Congresso Internazionale dei Matematici: Bologna del 3 al 10 de settembre di 1928
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goes to infinity, however, he was unable to give an explicit bound. Kuzmin showed that
316: 418:{\displaystyle \Delta _{n}(s)=\mathbb {P} \left\{x_{n}\leq s\right\}-\log _{2}(1+s),} 210:. His name is sometimes transliterated as Kusmin. He was an Invited Speaker of the 654: 183: 157: 986: 1073: 162: 632: > 0 are numerical constants. In 1929, the bound was improved to 1083: 1065: 203: 199: 110: 132: 516:{\displaystyle x_{n}={\frac {1}{k_{n+1}+{\frac {1}{k_{n+2}+\cdots }}}}.} 709:{\displaystyle 2^{\sqrt {2}}=2.6651441426902251886502972498731\ldots } 195: 74: 1040: 85: 191: 55: 989: 613:{\displaystyle |\Delta _{n}(s)|\leq Ce^{-\alpha {\sqrt {n}}}~,} 304:{\displaystyle x={\frac {1}{k_{1}+{\frac {1}{k_{2}+\cdots }}}}} 959:{\displaystyle \sum _{n\in I}e^{2\pi if(n)}\ll \lambda ^{-1}.} 753:
is continuously differentiable with monotonic derivative
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is a random number chosen uniformly in (0, 1), and
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In 1928, Kuzmin solved the following problem due to
823:{\displaystyle \Vert f'(x)\Vert \geq \lambda >0} 958: 872: 848: 822: 770: 745: 708: 612: 515: 417: 303: 1072:(The chronology there is apparently wrong, since 1081: 645:In 1930, Kuzmin proved that numbers of the form 151:Saint Petersburg State Polytechnical University 1024:Kuzmin, R.O. (1928). "On a problem of Gauss". 843: 837: 805: 785: 1041:"On a new class of transcendental numbers" 1010:Kuzmin, R. "Sur un problĆØme de Gauss." In 984: 669:. In particular, this result implies that 351: 190:, 9 November 1891, Riabye village in the 1120:Academic staff of Perm State University 1082: 1038: 1023: 990:"R. O. Kuz'min (1891ā€“1949) (obituary)" 1045:Izvestiya Akademii Nauk SSSR (Math.) 217: 13: 849:{\displaystyle \Vert \cdot \Vert } 555: 329: 14: 1131: 1059: 701:2.6651441426902251886502972498731 96:Saint Petersburg State University 194:district – 24 March 1949, 29: 229:Gauss–Kuzmin distribution 1032: 1017: 1004: 978: 932: 926: 802: 796: 574: 570: 564: 550: 409: 397: 344: 338: 1: 1070:Mathematics Genealogy Project 994:Uspekhi Matematicheskikh Nauk 1100:People from Gorodoksky Uyezd 319:expansion, find a bound for 147:Tomsk Polytechnic University 7: 10: 1136: 1014:, vol. 6, pp. 83ā€“90. 1929. 671:Gelfondā€“Schneider constant 729:He is also known for the 722:Gelfondā€“Schneider theorem 202:, known for his works in 187: 168: 156: 138: 128: 121: 107:Gaussā€“Kuzmin distribution 102: 91: 81: 63: 40: 35:Rodion Kusmin, circa 1926 28: 21: 1076:lived in USA from 1929.) 971: 858:Nearest integer function 731:Kusmin-Landau inequality 98:nee Petrograd University 860:) on a finite interval 724:for later developments. 720:is transcendental. See 1039:Kuzmin, R. O. (1930). 960: 874: 850: 824: 772: 747: 710: 614: 517: 419: 305: 188:Š Š¾Š“ŠøŠ¾Š½ ŠžŃŠøŠµŠ²Šøч ŠšŃƒŠ·ŃŒŠ¼ŠøŠ½ 175:Rodion Osievich Kuzmin 54:Riabye village in the 1115:Mathematical analysts 1105:Soviet mathematicians 1026:Dokl. Akad. Nauk SSSR 961: 875: 851: 825: 773: 748: 711: 615: 518: 420: 306: 163:James Victor Uspensky 143:Perm State University 115:mathematical analysis 16:Russian mathematician 890: 864: 834: 782: 757: 737: 682: 663:quadratic irrational 546: 435: 325: 245: 214:in 1928 in Bologna. 956: 908: 870: 846: 820: 771:{\displaystyle f'} 768: 743: 706: 610: 527:Gauss showed that 513: 415: 317:continued fraction 301: 893: 873:{\displaystyle I} 746:{\displaystyle f} 694: 606: 600: 536:tends to zero as 508: 505: 299: 296: 172: 171: 123:Scientific career 1127: 1110:Number theorists 1053: 1052: 1036: 1030: 1029: 1021: 1015: 1008: 1002: 1001: 982: 965: 963: 962: 957: 952: 951: 936: 935: 907: 879: 877: 876: 871: 855: 853: 852: 847: 829: 827: 826: 821: 795: 777: 775: 774: 769: 767: 752: 750: 749: 744: 715: 713: 712: 707: 696: 695: 690: 619: 617: 616: 611: 604: 603: 602: 601: 596: 577: 563: 562: 553: 522: 520: 519: 514: 509: 507: 506: 504: 497: 496: 477: 472: 471: 452: 447: 446: 424: 422: 421: 416: 393: 392: 380: 376: 369: 368: 354: 337: 336: 310: 308: 307: 302: 300: 298: 297: 295: 288: 287: 274: 269: 268: 255: 218:Selected results 189: 182: 158:Doctoral advisor 70: 50: 48: 33: 19: 18: 1135: 1134: 1130: 1129: 1128: 1126: 1125: 1124: 1080: 1079: 1062: 1057: 1056: 1037: 1033: 1022: 1018: 1009: 1005: 987:Natanson, I. P. 985:Venkov, B. A.; 983: 979: 974: 944: 940: 913: 909: 897: 891: 888: 887: 865: 862: 861: 835: 832: 831: 788: 783: 780: 779: 760: 758: 755: 754: 738: 735: 734: 689: 685: 683: 680: 679: 595: 588: 584: 573: 558: 554: 549: 547: 544: 543: 535: 486: 482: 481: 476: 461: 457: 456: 451: 442: 438: 436: 433: 432: 388: 384: 364: 360: 359: 355: 350: 332: 328: 326: 323: 322: 283: 279: 278: 273: 264: 260: 259: 254: 246: 243: 242: 220: 198:) was a Soviet 178: 92:Alma mater 77: 72: 68: 59: 52: 46: 44: 36: 24: 17: 12: 11: 5: 1133: 1123: 1122: 1117: 1112: 1107: 1102: 1097: 1092: 1078: 1077: 1074:J. V. Uspensky 1061: 1060:External links 1058: 1055: 1054: 1031: 1016: 1003: 976: 975: 973: 970: 969: 968: 967: 966: 955: 950: 947: 943: 939: 934: 931: 928: 925: 922: 919: 916: 912: 906: 903: 900: 896: 882: 881: 869: 845: 842: 839: 819: 816: 813: 810: 807: 804: 801: 798: 794: 791: 787: 766: 763: 742: 726: 725: 718: 717: 716: 705: 702: 699: 693: 688: 674: 673: 667:transcendental 642: 641: 622: 621: 620: 609: 599: 594: 591: 587: 583: 580: 576: 572: 569: 566: 561: 557: 552: 531: 525: 524: 523: 512: 503: 500: 495: 492: 489: 485: 480: 475: 470: 467: 464: 460: 455: 450: 445: 441: 427: 426: 425: 414: 411: 408: 405: 402: 399: 396: 391: 387: 383: 379: 375: 372: 367: 363: 358: 353: 349: 346: 343: 340: 335: 331: 313: 312: 311: 294: 291: 286: 282: 277: 272: 267: 263: 258: 253: 250: 237: 236: 219: 216: 170: 169: 166: 165: 160: 154: 153: 140: 136: 135: 130: 126: 125: 119: 118: 104: 103:Known for 100: 99: 93: 89: 88: 83: 79: 78: 73: 71:(aged 57) 65: 61: 60: 53: 51:9 October 1891 42: 38: 37: 34: 26: 25: 22: 15: 9: 6: 4: 3: 2: 1132: 1121: 1118: 1116: 1113: 1111: 1108: 1106: 1103: 1101: 1098: 1096: 1093: 1091: 1088: 1087: 1085: 1075: 1071: 1067: 1066:Rodion Kuzmin 1064: 1063: 1050: 1046: 1042: 1035: 1027: 1020: 1013: 1007: 1000:(4): 148ā€“155. 999: 995: 991: 988: 981: 977: 953: 948: 945: 941: 937: 929: 923: 920: 917: 914: 910: 904: 901: 898: 894: 886: 885: 884: 883: 867: 859: 840: 817: 814: 811: 808: 799: 792: 789: 764: 761: 740: 732: 728: 727: 723: 719: 703: 700: 697: 691: 686: 678: 677: 676: 675: 672: 668: 664: 660: 656: 652: 648: 644: 643: 639: 636: 0.7 by 635: 631: 627: 623: 607: 597: 592: 589: 585: 581: 578: 567: 559: 542: 541: 539: 534: 530: 526: 510: 501: 498: 493: 490: 487: 483: 478: 473: 468: 465: 462: 458: 453: 448: 443: 439: 431: 430: 428: 412: 406: 403: 400: 394: 389: 385: 381: 377: 373: 370: 365: 361: 356: 347: 341: 333: 321: 320: 318: 314: 292: 289: 284: 280: 275: 270: 265: 261: 256: 251: 248: 241: 240: 239: 238: 234: 230: 226: 222: 221: 215: 213: 209: 205: 204:number theory 201: 200:mathematician 197: 193: 185: 181: 176: 167: 164: 161: 159: 155: 152: 148: 144: 141: 137: 134: 131: 127: 124: 120: 116: 112: 111:number theory 108: 105: 101: 97: 94: 90: 87: 84: 80: 76: 67:24 March 1949 66: 62: 57: 43: 39: 32: 27: 23:Rodion Kuzmin 20: 1048: 1044: 1034: 1025: 1019: 1011: 1006: 997: 993: 980: 856:denotes the 658: 650: 646: 633: 629: 625: 537: 532: 528: 232: 174: 173: 139:Institutions 122: 69:(1949-03-24) 1095:1949 deaths 1090:1891 births 778:satisfying 133:Mathematics 82:Nationality 1084:Categories 1051:: 585ā€“597. 1028:: 375ā€“380. 661:is a real 47:1891-10-09 946:− 942:λ 938:≪ 918:π 902:∈ 895:∑ 844:‖ 841:⋅ 838:‖ 812:λ 809:≥ 806:‖ 786:‖ 704:… 655:algebraic 638:Paul LĆ©vy 593:α 590:− 579:≤ 556:Δ 502:⋯ 395:⁡ 382:− 371:≤ 330:Δ 293:⋯ 196:Leningrad 180:ā€¹See Tfdā€ŗ 75:Leningrad 793:′ 765:′ 649:, where 208:analysis 58:district 1068:at the 830:(where 315:is its 192:Haradok 184:Russian 86:Russian 56:Haradok 880:, then 665:, are 630:α 624:where 605:  529:Δ 429:where 231:): if 129:Fields 972:Notes 733:: If 227:(see 225:Gauss 815:> 657:and 206:and 113:and 64:Died 41:Born 653:is 386:log 212:ICM 1086:: 1047:. 1043:. 996:. 992:. 186:: 149:, 145:, 109:, 1049:7 998:4 954:. 949:1 933:) 930:n 927:( 924:f 921:i 915:2 911:e 905:I 899:n 868:I 818:0 803:) 800:x 797:( 790:f 762:f 741:f 698:= 692:2 687:2 659:b 651:a 647:a 640:. 634:C 628:, 626:C 608:, 598:n 586:e 582:C 575:| 571:) 568:s 565:( 560:n 551:| 538:n 533:n 511:. 499:+ 494:2 491:+ 488:n 484:k 479:1 474:+ 469:1 466:+ 463:n 459:k 454:1 449:= 444:n 440:x 413:, 410:) 407:s 404:+ 401:1 398:( 390:2 378:} 374:s 366:n 362:x 357:{ 352:P 348:= 345:) 342:s 339:( 334:n 290:+ 285:2 281:k 276:1 271:+ 266:1 262:k 257:1 252:= 249:x 233:x 177:( 117:. 49:) 45:(

Index


Haradok
Leningrad
Russian
Saint Petersburg State University
Gaussā€“Kuzmin distribution
number theory
mathematical analysis
Mathematics
Perm State University
Tomsk Polytechnic University
Saint Petersburg State Polytechnical University
Doctoral advisor
James Victor Uspensky
ā€¹See Tfdā€ŗ
Russian
Haradok
Leningrad
mathematician
number theory
analysis
ICM
Gauss
Gauss–Kuzmin distribution
continued fraction
Paul LĆ©vy
algebraic
quadratic irrational
transcendental
Gelfondā€“Schneider constant

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