Greg Kuperberg's user avatar
Greg Kuperberg's user avatar
Greg Kuperberg's user avatar
Greg Kuperberg
  • Member for 14 years, 5 months
  • Last seen this week
88 votes
5 answers
7k views

Algorithm or theory of diagram chasing

70 votes
3 answers
17k views

The story about Milnor proving the Fáry-Milnor theorem

59 votes
1 answer
2k views

Which region in the plane with a given area has the most domino tilings?

43 votes
7 answers
7k views

Complete discrete valuation rings with residue field ℤ/p

36 votes
14 answers
11k views

Great mathematicians born 1850-1920 (ET Bell's book ≲ x ≲ Fields Medalists)

36 votes
4 answers
10k views

Do actual Sudoku puzzles have a unique rational solution?

34 votes
2 answers
2k views

The value $\pm 1$ for the square root of Wilson's theorem, ((p-1)/2)! mod p

29 votes
6 answers
1k views

Concise model of modern fiat money and its non-conservation

25 votes
2 answers
2k views

Given an integer polynomial, is there a small prime modulo which it has a root?

17 votes
1 answer
889 views

When f(x)-a and f(x)-b yield the same field extension

15 votes
2 answers
759 views

Is there a spectral theory approach to non-explicit Plancherel-type theorems?

15 votes
1 answer
1k views

Countable Hom/Ext implies finitely generated

14 votes
2 answers
774 views

Highly connected, compact complex manifolds

13 votes
3 answers
459 views

A comparison question for non-positively curved disks

13 votes
3 answers
1k views

Schemes over ℤ with a “graded existence over 𝔽₁”

13 votes
2 answers
846 views

Which von Neumann algebras have inner permutation of tensor factors?

12 votes
1 answer
622 views

Volume-like property to upper bound lattice points in a convex body

12 votes
2 answers
680 views

Learning the exponents in a sum of two modular roots of unity

11 votes
2 answers
1k views

An algorithm to find non-trivial linear dependencies

10 votes
3 answers
626 views

Seeking reference for the enumerative "mass formula" concept

10 votes
3 answers
1k views

Looking for figure of part of an A2 affine building

10 votes
0 answers
269 views

Each simple real Lie algebra as a representation of its maximal compact subalgebra

7 votes
1 answer
623 views

Intersection product in a manifold, taking values in one factor

5 votes
2 answers
476 views

Better term for a (simplicial) contractible plane continuum