User Vipul Naik

48 votes

2 answers

2k views

Isomorphic general linear groups implies isomorphic fields?

asked Sep 10, 2012 at 19:45

16 votes

4 answers

2k views

What's the name for the analogue of divided power algebras for x^i/i?

asked Jun 22, 2012 at 3:39

5 votes

1 answer

1k views

Conjugacy class splitting in double cover of alternating, symmetric group

asked May 24, 2012 at 19:43

10 votes

1 answer

280 views

Double log ratio of number of conjugacy classes to order of group in infinite simple group families (or their corresponding Schur covers, automorphism groups)

asked Mar 25, 2012 at 1:24

7 votes

1 answer

321 views

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

asked Aug 11, 2010 at 12:51

10 votes

1 answer

2k views

Ring of Witt vectors and p-adics

asked Jan 8, 2012 at 18:54

4 votes

2 answers

1k views

Subgroups of alternating group conjugate in symmetric group conjugate in alternating group?

asked Jul 21, 2011 at 14:06

19 votes

2 answers

2k views

What invariants of a matrix or representation can be used to find its GL(n,Z)-conjugacy class?

asked Jul 5, 2011 at 22:42

9 votes

2 answers

925 views

Space whose product with paracompact space is paracompact

asked Jan 8, 2010 at 15:02

10 votes

1 answer

559 views

Extensions isomorphic as groups but not congruent or pseudo-congruent

asked Aug 15, 2010 at 12:32

0 votes

1 answer

447 views

Under what conditions does the second cohomology preserve injectivity?

asked Aug 27, 2010 at 18:22

1 vote

0 answers

77 views

r-locally linear functions of many variables

asked Apr 5, 2011 at 23:27

6 votes

3 answers

827 views

Braid group analogue for signed symmetric group?

asked Mar 30, 2011 at 17:07

13 votes

2 answers

1k views

Each element of fundamental group of a topological group represented by homomorphism?

asked Jan 14, 2011 at 22:29

4 votes

2 answers

334 views

Lie algebra cohomology over non-fields

asked Oct 22, 2010 at 16:31

3 votes

0 answers

122 views

Name/references for analogue of ring with 2-cocycle condition instead of distributivity

asked Oct 22, 2010 at 23:21

3 votes

0 answers

117 views

High-dimensional analogue of Skew

asked Oct 22, 2010 at 16:23

4 votes

2 answers

1k views

expected values over binomial distributions

asked Apr 19, 2010 at 17:05

42 votes

4 answers

8k views

Fields with trivial automorphism group

asked Apr 28, 2010 at 20:42

14 votes

6 answers

2k views

Density of numbers having large prime divisors (formalizing heuristic probability argument)

asked Feb 8, 2010 at 16:51

2 votes

0 answers

647 views

Alternating bilinear forms over local rings

asked Aug 26, 2010 at 12:56

1 vote

1 answer

707 views

The splitting for the cohomology version of Kunneth formula

asked Aug 26, 2010 at 13:07

5 votes

1 answer

1k views

Infinite direct products and derived subgroups

asked Aug 12, 2010 at 20:54

3 votes

1 answer

356 views

A functor that comes from a morphism in a bigger category

asked Aug 11, 2010 at 20:25

2 votes

0 answers

102 views

Slight question variant on "order information enough to guarantee 1-isomorphism"

asked Aug 11, 2010 at 13:12

15 votes

2 answers

2k views

Order information enough to guarantee 1-isomorphism?

asked Jul 9, 2010 at 21:31

7 votes

3 answers

3k views

congruent to 1 mod p

asked Feb 7, 2010 at 4:08

5 votes

1 answer

292 views

How large a subset do you need to uniquely determine a 2-cocycle?

asked Jun 23, 2010 at 13:21

8 votes

1 answer

369 views

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

asked May 25, 2010 at 22:05

27 votes

2 answers

1k views

Does every finitely presentable group have a presentation that simultaneously minimizes the number of generators and number of relators?

asked May 19, 2010 at 0:34

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71 Questions

Isomorphic general linear groups implies isomorphic fields?

What's the name for the analogue of divided power algebras for x^i/i?

Conjugacy class splitting in double cover of alternating, symmetric group

Double log ratio of number of conjugacy classes to order of group in infinite simple group families (or their corresponding Schur covers, automorphism groups)

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

Ring of Witt vectors and p-adics

Subgroups of alternating group conjugate in symmetric group conjugate in alternating group?

What invariants of a matrix or representation can be used to find its GL(n,Z)-conjugacy class?

Space whose product with paracompact space is paracompact

Extensions isomorphic as groups but not congruent or pseudo-congruent

Under what conditions does the second cohomology preserve injectivity?

r-locally linear functions of many variables

Braid group analogue for signed symmetric group?

Each element of fundamental group of a topological group represented by homomorphism?

Lie algebra cohomology over non-fields

Name/references for analogue of ring with 2-cocycle condition instead of distributivity

High-dimensional analogue of Skew

expected values over binomial distributions

Fields with trivial automorphism group

Density of numbers having large prime divisors (formalizing heuristic probability argument)

Alternating bilinear forms over local rings

The splitting for the cohomology version of Kunneth formula

Infinite direct products and derived subgroups

A functor that comes from a morphism in a bigger category

Slight question variant on "order information enough to guarantee 1-isomorphism"

Order information enough to guarantee 1-isomorphism?

congruent to 1 mod p

How large a subset do you need to uniquely determine a 2-cocycle?

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

Does every finitely presentable group have a presentation that simultaneously minimizes the number of generators and number of relators?