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6 votes
2 answers
364 views

A non-$p$-adic proof of a congruence of Bernoulli numbers

0 votes
0 answers
25 views

Request for explicit character tables of conjectured, non-existent finite simple groups

0 votes
0 answers
31 views

To find the longest circular arc that can lie inside a given convex polygon

0 votes
1 answer
66 views

How to force my differential equations give a bounded solution?

0 votes
0 answers
13 views

How to show that maximizing "chip EV" is the equilibrium strategy in winner-take-all poker

1 vote
1 answer
136 views

Another question about unitary and anti-unitary matrices

1 vote
2 answers
335 views

Proof of remark in algebraic number theory

48 votes
3 answers
6k views

Is the Riemann zeta function surjective?

8 votes
1 answer
127 views

Do graded-commutative rings satisfy the strong rank condition?

-2 votes
0 answers
103 views

Normalizer of the group of unit interval diffeomorphisms in the group of unit interval homeomorphisms

0 votes
1 answer
313 views

Distance function and its approximation

1 vote
1 answer
126 views

Fourier coefficients of the logarithm of a given function

13 votes
1 answer
2k views

Necessary and sufficient conditions for a sum of idempotents to be idempotent

2 votes
0 answers
55 views

Invariant factors and commuting matrices over a discrete valuation ring

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