13

Questions

16
30
votes
2
answers
1k
views

Moving one family of commuting self-adjoint operators to another without losing commutativity on the way

may 24 at 16:09 Sean Lawton 521310

71
126
votes
8
answers
5k
views

Two commuting mappings in the disk

may 14 at 11:22 Daniele Zuddas 83029

93
88
votes
28
answers
16k
views

Cool problems to impress students with group theory [closed]

apr 13 at 6:23 Andres Caicedo 14.8k14381

1
16
votes
0
answers
274
views

What is the best probabilistic estimate from below for a random polynomial on an arc?

feb 20 at 14:26 fedja 20k24896

5
15
votes
2
answers
875
views

Center of mass from the abstract point of view, or could the ancient Greeks invent modern analysis?

dec 24 at 0:22 Deane Yang 12.6k13482

2
16
votes
1
answer
495
views

Is the ball reducible in some high dimension?

jun 30 at 21:34 Greg Kuperberg 36.4k2117179

2
15
votes
1
answer
405
views

Convex bodies with constant maximal section function in odd dimensions

jan 4 12 at 2:00 fedja 20k24896

5
12
votes
1
answer
620
views

Why is there no formula for partial sums of some simple series?

dec 3 11 at 10:36 Igor Rivin 31.2k33771

 
9
votes
0
answers
169
views

A slightly generalized existence and uniqueness theorem for integral equations (reference request)

oct 27 11 at 23:22 fedja 20k24896

3
8
votes
0
answers
332
views

An exponential polynomial with at least one bounded positivity component

aug 21 11 at 22:07 Will Jagy 12.6k12645

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