31:
423:
521:
714:
618:
309:
964:
179:
828:
854:
730:
776:
878:
751:
324:
1119:
150:
434:
681:
545:
244:
889:
211:
1099:
781:
95:
1114:
1104:
670:
1069:
721:
228:
106:
146:
637:
833:
1109:
857:
666:
207:
142:
114:
1094:
1089:
662:
224:
1012:
Atti del
Congresso Internazionale dei Matematici: Bologna del 3 al 10 de settembre di 1928
8:
756:
863:
736:
540:
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
30:
235:
is a random number chosen uniformly in (0, 1), and
892:
866:
836:
784:
759:
739:
684:
548:
437:
327:
247:
223:
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 (1891ā1949) (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. 83ā90. 1929.
671:GelfondāSchneider constant
729:He is also known for the
722:GelfondāSchneider theorem
202:, known for his works in
187:
168:
156:
138:
128:
121:
107:GaussāKuzmin 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 ŠŃŠøŠµŠ²ŠøŃ ŠŃŠ·ŃŠ¼ŠøŠ½
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): 148ā155.
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:: 585ā597.
1028:: 375ā380.
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:ā¹See Tfdāŗ
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:(
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.