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Alexey Ustinov

Russia

http://iam.khv.ru/staff/Ustinov.php

Primary interests: number theory, geometry of numbers, cryptography.

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Top Questions
53 votes

Most intriguing mathematical epigraphs

soft-question big-list mathematical-writing math-communication asked Sep 29, 2015 at 8:36
mathoverflow.net

40 votes

Is there a regular pentagon with a rational point on each edge?

nt.number-theory discrete-geometry geometry-of-numbers asked Nov 25, 2023 at 7:28
mathoverflow.net

35 votes

"The Two Sheriffs" puzzle

co.combinatorics coding-theory recreational-mathematics puzzle asked Apr 17, 2015 at 12:13
mathoverflow.net

35 votes

Solve in positive integers: $n!=m(m+1)$

diophantine-equations nt.number-theory asked Sep 18, 2010 at 10:27
mathoverflow.net

33 votes

Applications of finite continued fractions

nt.number-theory reference-request big-list continued-fractions applications asked Dec 19, 2010 at 9:56
mathoverflow.net

25 votes

The origin of Discrete `Liouville's theorem'

nt.number-theory reference-request ap.analysis-of-pdes potential-theory harmonic-functions asked Nov 22, 2013 at 11:18
mathoverflow.net

24 votes

"Gauss trick" vs Karatsuba multiplication

soft-question algorithms ho.history-overview asked Dec 27, 2018 at 3:10
mathoverflow.net

18 votes

Open problems in continued fractions theory

nt.number-theory big-list continued-fractions open-problems-list asked Apr 4, 2015 at 11:01
mathoverflow.net

15 votes

$\mathbb{R}^3$ as the union of disjoint circles

reference-request set-theory gt.geometric-topology ho.history-overview asked Apr 1, 2021 at 1:33
mathoverflow.net

13 votes

Limiting shape for Brillouin zones

reference-request mg.metric-geometry geometry euclidean-geometry polygons asked Oct 23, 2015 at 13:52
mathoverflow.net

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Top Answers
50
Rediscovery of lost mathematics
mathoverflow.net

43
Examples of unexpected mathematical images
mathoverflow.net

41
'Important' applications of p-adic numbers outside of algebra (and number theory).
mathoverflow.net

39
Rediscovery of lost mathematics
mathoverflow.net

22
Examples of unexpected mathematical images
mathoverflow.net

20
Open problems in Euclidean geometry?
mathoverflow.net

20
Conway's lesser-known results
mathoverflow.net

19
Open problems in Euclidean geometry?
mathoverflow.net

18
Rediscovery of lost mathematics
mathoverflow.net

18
Zagier's one-sentence proof of a theorem of Fermat
mathoverflow.net

17
What "real life" problems can be solved using billiards?
mathoverflow.net

16
Examples of unexpected mathematical images
mathoverflow.net

16
Examples of common false beliefs in mathematics
mathoverflow.net

15
Early two-author math papers
mathoverflow.net

15
Binomial coefficients and "missing primes"
mathoverflow.net

15
LaTeX tricks that save time in typesetting
mathoverflow.net

14
LaTeX tricks that save time in typesetting
mathoverflow.net

14
Generating function of the Thue-Morse sequence
mathoverflow.net

13
Is this a new Fibonacci Identity?
mathoverflow.net

13
Mathematical conjectures on which applications depend
mathoverflow.net

13
Ingenuity in mathematics
mathoverflow.net

12
A variant of Lambert function
mathoverflow.net

12
Open problems in continued fractions theory
mathoverflow.net

12
Not especially famous, long-open problems which anyone can understand
mathoverflow.net

11
Average number of iterations for the Euclidean algorithm to terminate
mathoverflow.net

11
Examples of unexpected mathematical images
mathoverflow.net

11
Is the sum of digits of $3^{1000}$ divisible by $7$?
mathoverflow.net

11
The half-life of a theorem, or Arnold's principle at work
mathoverflow.net

11
Length of Hirzebruch continued fractions
mathoverflow.net

11
distribution of coprime integers
mathoverflow.net

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