User MTS

78 votes

7 answers

8k views

Example of a manifold which is not a homogeneous space of any Lie group

asked Feb 24, 2012 at 0:11

29 votes

6 answers

2k views

How to recognize a Hopf algebra?

asked Mar 8, 2012 at 5:25

26 votes

5 answers

3k views

Presenting work in progress [closed]

asked Jan 9, 2012 at 17:02

25 votes

2 answers

2k views

Koszul duality between Weyl and Clifford algebras?

asked Nov 10, 2011 at 20:22

23 votes

4 answers

2k views

A matrix algebra has no deformations?

asked Nov 15, 2011 at 20:01

14 votes

1 answer

1k views

2-cocycle twists of braided Hopf algebras

asked Aug 3, 2011 at 19:33

14 votes

0 answers

792 views

Splitting of homomorphism from cactus group to permutation group

asked May 17, 2011 at 23:58

12 votes

1 answer

834 views

R-matrices, crystal bases, and the limit as q -> 1

asked Dec 7, 2011 at 23:16

12 votes

1 answer

723 views

Unitary representations of Quantum Groups

asked Apr 4, 2012 at 17:37

11 votes

5 answers

1k views

Perspective on the diamond lemma in ring theory

asked May 25, 2012 at 0:16

10 votes

1 answer

2k views

Generators of associated graded algebra

asked Aug 26, 2012 at 2:21

9 votes

1 answer

1k views

(Elementary?) combinatorial identity expressing binomial coefficients as an alternating sum over permutations.

asked Jun 30, 2010 at 22:25

9 votes

3 answers

2k views

Module category equivalent to graded module category?

asked Jan 12, 2012 at 17:02

9 votes

7 answers

8k views

Uncountable family of infinite subsets with pairwise finite intersections

asked Feb 23, 2012 at 17:41

8 votes

2 answers

528 views

Idempotency of the q-antisymmetrizer

asked Jul 28, 2010 at 22:26

8 votes

2 answers

2k views

BGG resolution and representations of parabolic subalgebras

asked Jul 14, 2011 at 5:16

7 votes

0 answers

223 views

Does the braid group act faithfully on the quantized enveloping algebra?

asked Jan 31, 2013 at 19:51

7 votes

1 answer

321 views

Real forms of Drinfeld-Jimbo quantum groups

asked Feb 25, 2013 at 19:24

5 votes

1 answer

598 views

Associated graded of filtered module-algebra over a Hopf algebra

asked Apr 21, 2011 at 0:06

4 votes

0 answers

196 views

Orbit of rank-one projection under compact group action

asked Oct 18, 2011 at 3:17

2 votes

2 answers

167 views

Specialization of PBW-algebras over rational function field

asked Jul 3, 2013 at 22:36

1 vote

2 answers

675 views

Software for noncommutative Groebner bases over rational function fields

asked Feb 25, 2014 at 21:47

Stack Exchange Network

22 Questions

Example of a manifold which is not a homogeneous space of any Lie group

How to recognize a Hopf algebra?

Presenting work in progress [closed]

Koszul duality between Weyl and Clifford algebras?

A matrix algebra has no deformations?

2-cocycle twists of braided Hopf algebras

Splitting of homomorphism from cactus group to permutation group

R-matrices, crystal bases, and the limit as q -> 1

Unitary representations of Quantum Groups

Perspective on the diamond lemma in ring theory

Generators of associated graded algebra

(Elementary?) combinatorial identity expressing binomial coefficients as an alternating sum over permutations.

Module category equivalent to graded module category?

Uncountable family of infinite subsets with pairwise finite intersections

Idempotency of the q-antisymmetrizer

BGG resolution and representations of parabolic subalgebras

Does the braid group act faithfully on the quantized enveloping algebra?

Real forms of Drinfeld-Jimbo quantum groups

Associated graded of filtered module-algebra over a Hopf algebra

Orbit of rank-one projection under compact group action

Specialization of PBW-algebras over rational function field

Software for noncommutative Groebner bases over rational function fields