Bogdan Grechuk
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Bogdan Grechuk
2 Feb 2026
created 2 Feb 2026 17:05
updated 2 Feb 2026 17:14
1 category
Seminar announcements
Avi Wigderson’s talk on Expander graphs
Bogdan Grechuk
6 Jan 2026
created 6 Jan 2026 12:15
updated 9 Jan 2026 09:25
1 category
Seminar announcements
Boaz Klartag’s talk on Sphere packing
Favorite theorems
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Bogdan Grechuk
6 Feb 2026
created 6 Feb 2026 15:57
updated 6 Feb 2026 15:58
1 category
Favorite theorems
The intersection exponent for planar random walks
Bogdan Grechuk
30 Jan 2026
1 category
Favorite theorems
The proof of Kepler’s conjecture
Bogdan Grechuk
23 Jan 2026
created 23 Jan 2026 18:59
updated 24 Jan 2026 12:45
1 category
Favorite theorems
All braid groups are linear
Bogdan Grechuk
16 Jan 2026
1 category
Favorite theorems
On the zero set of linear recurrences
Bogdan Grechuk
9 Jan 2026
created 9 Jan 2026 10:19
updated 9 Jan 2026 10:20
1 category
Favorite theorems
Cycle decompositions of complete graphs
Bogdan Grechuk
2 Jan 2026
created 2 Jan 2026 10:58
updated 9 Jan 2026 09:06
1 category
Favorite theorems
The Modularity Theorem
Bogdan Grechuk
2 Jan 2026
created 2 Jan 2026 09:42
updated 30 Jan 2026 10:15
1 category
Favorite theorems
My favorite theorems
Recent developments
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Bogdan Grechuk
28 Jan 2026
1 category
Recent developments
Short-Interval Pseudorandomness of the Möbius Function
Bogdan Grechuk
26 Jan 2026
1 category
Recent developments
On infinite-index subgroups of one-relator groups
Bogdan Grechuk
21 Jan 2026
1 category
Recent developments
On the solubility of the negative Pell equation
Bogdan Grechuk
13 Jan 2026
created 13 Jan 2026 15:09
updated 14 Jan 2026 08:51
1 category
Recent developments
The hottest and coldest points on a triangle
Bogdan Grechuk
12 Jan 2026
1 category
Recent developments
Squaring the circle with Jordan measurable pieces
Bogdan Grechuk
10 Jan 2026
created 10 Jan 2026 10:16
updated 10 Jan 2026 10:56
1 category
Recent developments
Exponentially better Ramsey upper bounds
Bogdan Grechuk
8 Jan 2026
created 8 Jan 2026 10:01
updated 10 Jan 2026 08:51
1 category
Recent developments
Diophantine approximation on fractal sets
Bogdan Grechuk
7 Jan 2026
1 category
Recent developments
The density version of Hindman’s finite sums theorem
Bogdan Grechuk
5 Jan 2026
created 5 Jan 2026 11:18
updated 9 Jan 2026 09:16
1 category
Recent developments
The three dimensional Kakeya conjecture is true
Bogdan Grechuk
4 Jan 2026
created 4 Jan 2026 11:44
updated 9 Jan 2026 09:10
1 category
Recent developments
The congruent number problem, and Goldfeld’s conjecture
Bogdan Grechuk
3 Jan 2026
1 category
Recent developments
Almost all Markoff numbers are composite
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