User Bugs Bunny

21 votes

group scheme neither affine, nor an abelian variety

answered May 18, 2011 at 10:16

20 votes

A ring for which the category of left and right modules are distinct

answered Nov 4, 2021 at 6:57

14 votes

Two equivalent irreducible representations given by integer matrices

answered Jan 15, 2020 at 11:37

14 votes

Accepted

When does an injective group homomorphism have an inverse?

answered Jun 28, 2010 at 10:50

13 votes

Geometric interpretation of Universal enveloping algebras

answered Oct 5, 2010 at 18:07

13 votes

Finite-dimensional faithful representations of compact groups

answered May 5, 2011 at 11:08

13 votes

Simplest examples of rings that are not isomorphic to their opposites

answered May 9, 2011 at 11:00

12 votes

Derived category of varieties and derived category of quiver algebras

answered Nov 26, 2012 at 8:49

12 votes

Accepted

Can we bound degrees of complex irreps in terms of the average conjugacy class size?

answered Apr 12, 2010 at 11:51

10 votes

Noetherian rings of infinite Krull dimension?

answered Apr 12, 2010 at 9:04

10 votes

Finite groups with elements of order n

answered Jul 14, 2010 at 10:03

10 votes

Integer roots of a symmetric polynomial

answered Dec 13, 2016 at 15:14

10 votes

Accepted

Why care about Grothendieck topology?

answered Jul 26, 2019 at 10:31

10 votes

Kahler structure on flag manifolds

answered Nov 5, 2010 at 23:49

9 votes

Accepted

Left module which cannot be made into a bimodule?

answered Feb 21, 2020 at 15:26

9 votes

Accepted

Polynomial algebra and its special ideals

answered Mar 20, 2020 at 8:14

8 votes

Langlands dual group in math vs. Goddard-Nyuts-Olive dual group in physics

answered May 30, 2020 at 8:29

8 votes

Accepted

In the rep theory of Quantum Double, why does the fusion of 2 "pure fluxes" yield a "pure charge"?

answered Aug 31 at 16:09

8 votes

Accepted

A silly technical question on Albert algebras

answered Dec 3, 2010 at 9:04

8 votes

Examples of categorification

answered Oct 26, 2010 at 10:40

8 votes

What is your favorite ADE-style classification?

answered Nov 4, 2010 at 10:03

8 votes

What is the relation between characters of a group and its lie algebra?

answered Apr 1, 2010 at 12:30

7 votes

Accepted

An example of a series that is not differentially algebraic?

answered Apr 14, 2010 at 10:36

7 votes

Accepted

A polynomial homomorphism from Gl to the group of units is a power of the determinant

answered Jul 13, 2012 at 9:19

7 votes

Accepted

Extensions of topological groups

answered Jul 18, 2012 at 7:21

6 votes

product of rings

answered May 24, 2011 at 7:55

6 votes

Accepted

Convenient reference for subgroups of a finite semidirect product?

answered Jul 10, 2012 at 16:49

6 votes

Research statement in PhD applications--how much is too much?

answered Jun 4, 2010 at 10:53

6 votes

Accepted

On matrices that almost have the same eigenvalues

answered Jun 17, 2010 at 16:27

6 votes

Is there a non-projective flat module over a local ring?

answered Jul 21, 2010 at 21:36

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191 Answers

group scheme neither affine, nor an abelian variety

A ring for which the category of left and right modules are distinct

Two equivalent irreducible representations given by integer matrices

When does an injective group homomorphism have an inverse?

Geometric interpretation of Universal enveloping algebras

Finite-dimensional faithful representations of compact groups

Simplest examples of rings that are not isomorphic to their opposites

Derived category of varieties and derived category of quiver algebras

Can we bound degrees of complex irreps in terms of the average conjugacy class size?

Noetherian rings of infinite Krull dimension?

Finite groups with elements of order n

Integer roots of a symmetric polynomial

Why care about Grothendieck topology?

Kahler structure on flag manifolds

Left module which cannot be made into a bimodule?

Polynomial algebra and its special ideals

Langlands dual group in math vs. Goddard-Nyuts-Olive dual group in physics

In the rep theory of Quantum Double, why does the fusion of 2 "pure fluxes" yield a "pure charge"?

A silly technical question on Albert algebras

Examples of categorification

What is your favorite ADE-style classification?

What is the relation between characters of a group and its lie algebra?

An example of a series that is not differentially algebraic?

A polynomial homomorphism from Gl to the group of units is a power of the determinant

Extensions of topological groups

product of rings

Convenient reference for subgroups of a finite semidirect product?

Research statement in PhD applications--how much is too much?

On matrices that almost have the same eigenvalues

Is there a non-projective flat module over a local ring?