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Jim Humphreys's user avatar
Jim Humphreys's user avatar
Jim Humphreys's user avatar
Jim Humphreys
  • Member for 14 years, 10 months
  • Last seen more than 4 years ago
13 votes
Accepted

Failure of a basic fact from Representation Theory

13 votes
Accepted

Erratum for Fulton and Harris

13 votes
Accepted

Borel's Paris Lectures

13 votes
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Coxeter groups - Parabolic subgroups

13 votes
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Traces on Hecke algebras and the Jones polynomial

13 votes

What would you want on a Lie theory cheat poster?

13 votes

Good books in Modular Representation Theory

13 votes

Should I not cite an arxiv.org paper which otherwise seems to be unpublished?

13 votes
Accepted

Can the Jacobi-Trudi identity be understood as a BGG resolution?

13 votes

Weil's paper under a pseudonym on deforming singular varieties

13 votes
Accepted

Errata for Linear algebraic groups by Springer

12 votes

Square root in complex reductive groups

12 votes
Accepted

Is Soergel's proof of Kazhdan-Lusztig positivity for Weyl groups independent of other proofs?

12 votes

"Why" is every polynomial representation of SL(2) selfdual?

12 votes

Semisimplicity of Lie algebra in positive characteristic

12 votes

In a compact lie group, can two closed connected subgroups generate a non-closed subgroup?

12 votes

about dual Verma module in BGG category O

12 votes
Accepted

Kempf Vanishing theorem and Representation of Lie algebras.

12 votes
Accepted

Can the Sylow p-subgroup of a finite group of Lie type be cyclic?

12 votes
Accepted

Who originated the standard symbols for Lie groups GL, SL, SU, etc.?

12 votes

on the center of a Lie group

12 votes
Accepted

On a drawing in Dixmier's Enveloping Algebras

12 votes
Accepted

Representation rings of exceptional Lie groups

11 votes
Accepted

Maximal compact subgroup of p-adic lie groups

11 votes

Subquotients in the Verma filtration on Verma modules

11 votes
Accepted

Functorality of universal central extension

11 votes

Why are the holomorphic line bundle sections finite dimensional?

11 votes

General Bruhat decomposition (with parabolic not necessarily Borel)

11 votes

Who first noticed that the Hilbert symbol is a Steinberg symbol ?

11 votes

Definitions of Reductive and Semisimple Groups

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