38

Questions
votes newest views recent
2
10
votes
1
answer
380
views

Is choice needed to establish the existence of idempotent ultrafilters?

mar 13 at 12:48 Andreas Blass 32.9k●4●54●109

4
9
votes
3
answers
343
views

Applications of idempotent ultrafilters

apr 26 at 17:36 Feanor 59●1●4

5
9
votes
1
answer
346
views

Is the following construction of the 0-Hecke monoid (well) known?

nov 10 at 21:18 Patricia Hersh 2,685●1●9●21

2
7
votes
0
answers
880
views

Why did Gabriel invent the term “quiver”?

aug 14 11 at 20:24 Benjamin Steinberg 10.7k●1●14●49

4
7
votes
1
answer
556
views

How to recognize a finite dimensional algebra is Koszul or quadratic?

nov 29 11 at 18:41 Benjamin Steinberg 10.7k●1●14●49

 
7
votes
1
answer
269
views

Cayley Graphs of Z/nZ with invertible adjacency matrices

jun 7 at 4:16 Will Sawin 18.5k●1●24●48

 
7
votes
2
answers
254
views

Is there a general result that theorems about finite structures proved in ZFC can be proved in ZF?

apr 6 12 at 14:18 François G. Dorais♦ 22.4k●2●48●113

2
6
votes
0
answers
162
views

Complexity of computing the minimum degree of a faithful linear representation of a finite group

jan 18 12 at 4:54 Benjamin Steinberg 10.7k●1●14●49

3
6
votes
2
answers
243
views

Are all free factors of finitely generated subgroups of free groups geometric?

may 2 12 at 13:40 Lee Mosher 5,806●1●9●26

 
6
votes
1
answer
254
views

Does the extension to the pro-completion of a left exact (finite) colimit preserving functor preserve (finite) colimits

dec 17 11 at 21:01 Tim Porter 3,735●6●14

prev 1 2 3 4 next