68

Questions
votes newest views recent
2
7
votes
2
answers
434
views

Non-isomorphic groups with isomorphic nth powers (and similarly in other categories)

may 3 10 at 3:54 Victor Protsak 7,751●1●30●44

1
7
votes
2
answers
612
views

Space whose product with paracompact space is paracompact

jun 23 11 at 13:15 Stephen S 784●1●7●9

2
7
votes
1
answer
266
views

Finding a subnormal series with specified quotients and end group of specific depth (defect)

jan 22 12 at 0:56 Vipul Naik 4,865●13●42

4
7
votes
1
answer
210
views

Does every retraction of free groups arise from projection to a subset of a freely generating set?

may 25 10 at 23:25 HW 10.1k●1●23●66

1
6
votes
3
answers
536
views

Brauer’s permutation lemma — extending to some other finite groups?

sep 12 at 20:29 Vipul Naik 4,865●13●42

4
6
votes
3
answers
1k
views

congruent to 1 mod p

jun 29 10 at 11:27 Gerry Myerson 15.7k●1●47●87

1
6
votes
2
answers
677
views

Spheres over rational numbers and other fields

feb 22 10 at 19:45 Bjorn Poonen 14.2k●2●47●75

1
6
votes
3
answers
441
views

Braid group analogue for signed symmetric group?

mar 30 11 at 17:50 Adrien 2,100●1●7●12

 
6
votes
1
answer
154
views

What are the necessary and sufficient conditions for GL(n,Z/p^lZ) to be isomorphic to GL(n,F_p[t]/t^l)?

sep 12 at 16:01 Amritanshu Prasad 1,873●6●15

5
6
votes
1
answer
209
views

Normal subgroup that is invariant under powering such that the quotient group is not invariant

feb 15 at 1:45 Denis Osin 1,706●6●14

prev 1 2 3 4 5 … 7 next