User Jim Humphreys

3 votes

why are all characters of the maximal torus in a Lie group weights?

answered May 19, 2011 at 21:55

3 votes

primitive degree of a coxeter group

answered May 11, 2011 at 17:27

3 votes

Accepted

Examples of exotic modules for the additive group

answered Nov 8, 2011 at 13:29

3 votes

Presentation of the pure Artin groups

answered Nov 8, 2011 at 23:31

3 votes

Reference request for the number of Sylow p-subgroups

answered Apr 30, 2012 at 22:30

3 votes

Weyl group of a singular torus

answered Mar 7, 2012 at 18:59

3 votes

Lie algebra admitting some hyperbolic automorphism is nilpotent

answered Mar 12, 2012 at 21:13

3 votes

There is no lattice in PSL(2,R) which contains PSL(2,Z) properly?

answered Apr 5, 2012 at 17:42

3 votes

Sylow subgroups of projective general linear groups

answered Feb 9, 2012 at 19:56

3 votes

Accepted

Dimension of $\mathfrak{sl}_n$ modules

answered Jan 31, 2012 at 14:46

3 votes

Can the intersection of a maximal parabolic with a closed sub-group contain more than one maximal parabolic?

answered Dec 8, 2011 at 18:49

3 votes

Does the Poincare series of a Coxeter group always describe a "flag variety"?

answered Jun 16, 2010 at 19:25

3 votes

The geometry of closure of orbit of Borel subgroup in G/B × G/B.

answered May 10, 2010 at 11:59

3 votes

Terminology for nilpotent groups

answered May 24, 2010 at 17:38

3 votes

Questions Suggested by the Parabolic Subgroup Definition

answered May 30, 2010 at 13:33

3 votes

Accepted

Are all connected solvable affine algebraic groups supersolvable?

answered Apr 1, 2010 at 19:42

3 votes

Accepted

Gelfand-Tsetlin bases for Lie groups over finite fields

answered Nov 25, 2010 at 16:14

3 votes

Multiple factors of the character of a representation

answered Nov 18, 2010 at 14:46

3 votes

Explicit equations for Schubert varieties

answered Aug 27, 2010 at 22:15

3 votes

Accepted

An identity for sheaf cohomology of flag varieties

answered Sep 4, 2010 at 15:52

3 votes

Accepted

Presentation of GL(n,p)?

answered Feb 8, 2011 at 15:09

3 votes

Accepted

Absolute irreducibility of p-restricted highest weight modules

answered Feb 23, 2017 at 21:14

3 votes

Modular representations

answered Feb 28, 2017 at 18:25

3 votes

Implications of non-negativity of coefficients of arbitrary Kazhdan-Lusztig polynomials?

answered Sep 16, 2016 at 15:26

3 votes

The annihilator of a Borel subalgebra being its nilpotent radical

answered Feb 4, 2017 at 20:38

3 votes

Accepted

indecomposable modules restricted from $gl_n$ to $sl_n$

answered Mar 10, 2016 at 17:10

3 votes

Linear Algebra classic books

answered Jul 22, 2015 at 14:31

3 votes

Universal Chevalley group associated to $D_l$

answered Dec 8, 2015 at 19:11

3 votes

Reference Request: Derived group of $\mathscr R_u(B)$

answered Jun 21, 2017 at 19:33

3 votes

Accepted

Kazhdan-Lusztig Theorem for a special class of integral weights

answered Aug 10, 2017 at 13:32

Stack Exchange Network

704 Answers

why are all characters of the maximal torus in a Lie group weights?

primitive degree of a coxeter group

Examples of exotic modules for the additive group

Presentation of the pure Artin groups

Reference request for the number of Sylow p-subgroups

Weyl group of a singular torus

Lie algebra admitting some hyperbolic automorphism is nilpotent

There is no lattice in PSL(2,R) which contains PSL(2,Z) properly?

Sylow subgroups of projective general linear groups

Dimension of $\mathfrak{sl}_n$ modules

Can the intersection of a maximal parabolic with a closed sub-group contain more than one maximal parabolic?

Does the Poincare series of a Coxeter group always describe a "flag variety"?

The geometry of closure of orbit of Borel subgroup in G/B × G/B.

Terminology for nilpotent groups

Questions Suggested by the Parabolic Subgroup Definition

Are all connected solvable affine algebraic groups supersolvable?

Gelfand-Tsetlin bases for Lie groups over finite fields

Multiple factors of the character of a representation

Explicit equations for Schubert varieties

An identity for sheaf cohomology of flag varieties

Presentation of GL(n,p)?

Absolute irreducibility of p-restricted highest weight modules

Modular representations

Implications of non-negativity of coefficients of arbitrary Kazhdan-Lusztig polynomials?

The annihilator of a Borel subalgebra being its nilpotent radical

indecomposable modules restricted from $gl_n$ to $sl_n$

Linear Algebra classic books

Universal Chevalley group associated to $D_l$

Reference Request: Derived group of $\mathscr R_u(B)$

Kazhdan-Lusztig Theorem for a special class of integral weights