35

Questions

36
89
votes
3
answers
3k
views

A Game on Noetherian Rings

may 15 12 at 8:12 Martin Brandenburg 29.5k247133

12
39
votes
3
answers
1k
views

What is the geometry of an undecidable diophantine equation?

dec 6 at 7:14 KConrad 17.2k364119

5
25
votes
1
answer
544
views

How many polynomial Morse functions on the sphere?

apr 3 at 12:19 Liviu Nicolaescu 11.5k12133

4
18
votes
1
answer
393
views

How long can this string of digits be extended?

apr 9 at 4:45 Aaron Meyerowitz 11.8k11031

6
16
votes
1
answer
902
views

What is the best homology/cohomology theory for the Lefschetz fixed point theorem?

nov 3 11 at 6:15 Greg Kuperberg 36.4k2117179

2
15
votes
1
answer
344
views

What sets of primes can we pick out with first-order statements?

feb 14 at 22:45 ACL 4,2851224

5
13
votes
1
answer
326
views

$\Lambda$-Ring Structures on $\mathbb A^2$

apr 11 at 21:41 Will Sawin 19.4k12448

4
12
votes
1
answer
282
views

Sets with zeta functions that are not the primes

nov 5 at 20:58 Jonah Sinick 4,0061138

1
12
votes
0
answers
322
views

What can be the dimension of a pointless smooth proper Z-scheme?

nov 7 at 7:08 Will Sawin 19.4k12448

3
12
votes
1
answer
510
views

Can every finite poset be realized as divisors of an algebraic curve?

jan 26 12 at 4:02 Will Sawin 19.4k12448

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