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earned this badge 31 times.
Counting conjugacy classes in simple groups of Lie type
Awarded Mar 18 at 9:20
Convention about "long" roots for simple Lie algebras of types ADE?
Awarded Feb 9 at 2:20
Source of a formula for tensor product multiplicities?
Awarded Oct 13, 2023 at 17:00
Nilpotent matrices related to Lie algebras of special orthogonal groups in characteristic 0
Awarded Jun 13, 2023 at 20:32
Smallest dimension of nontrivial representation of a simple Lie algebra over `$\mathbb{C}$`
Awarded Apr 27, 2023 at 22:42
Examples of Richardson orbit closures not having a symplectic resolution?
Awarded Jan 31, 2023 at 15:46
Non-vanishing cohomology of line bundles on projective varieties in prime characteristic?
Awarded Jul 21, 2022 at 0:32
Optimal definition of "paving by affine spaces"?
Awarded Jul 1, 2022 at 7:21
Levi decomposition in disconnected linear algebraic group (characteristic 0)?
Awarded Jan 8, 2022 at 20:16
Convenient reference for subgroups of a finite semidirect product?
Awarded Nov 8, 2021 at 19:32
Uniform proof of dimension formula for minimal special nilpotent orbit?
Awarded Jul 1, 2021 at 0:21
Dual versions of "folding" symmetric ADE Dynkin diagrams?
Awarded Mar 9, 2021 at 18:49
Are there "reasonable" criteria for existence/non-existence of Levi factors or their conjugacy in prime characteristic?
Awarded Oct 25, 2020 at 22:51
Greatly expanded new edition of a Bourbaki chapter on algebra?
Awarded Jan 23, 2017 at 9:34
Is there any need to study Coxeter systems (W,S) with S infinite?
Awarded Jul 6, 2016 at 23:54
Implications of non-negativity of coefficients of arbitrary Kazhdan-Lusztig polynomials?
Awarded May 2, 2016 at 14:56
Textbook source for finite group properties deducible from character table?
Awarded Aug 16, 2015 at 9:51
Definition of "finite group of Lie type"?
Awarded Jun 8, 2015 at 18:43
Simply connected algebraic groups and reductive subgroups of maximal rank
Awarded Feb 6, 2015 at 2:05
Example of non-projective variety with non-semisimple Frobenius action on etale cohomology?
Awarded Oct 9, 2014 at 8:33
What was Casimir's precise role in describing the center of the universal enveloping algebra of a semisimple Lie algebra?
Awarded Oct 8, 2014 at 9:06
What is a "block" in an abelian category?
Awarded Apr 8, 2014 at 4:15
Comparing algebraic group orbits over big and small algebraically closed fields
Awarded Dec 18, 2013 at 12:05
Can Wikipedia be a reliable (and sustainable) resource for advanced mathematics? [closed]
Awarded May 26, 2013 at 0:20
What role does the "dual Coxeter number" play in Lie theory (and should it be called the "Kac number")?
Awarded Feb 29, 2012 at 9:35
Origin of symbol *l* for a prime different from a fixed prime?
Awarded Oct 22, 2011 at 9:35
Is Galois theory necessary (in a basic graduate algebra course)?
Awarded Aug 13, 2011 at 18:50
Is there a reasonable way to refer to a 23 page article with 28 authors?
Awarded May 17, 2011 at 22:05
What are "classical groups"?
Awarded Jan 2, 2011 at 12:20
Origin of terms "flag", "flag manifold", "flag variety"?
Awarded Oct 12, 2010 at 12:20
How did "Ore's Conjecture" become a conjecture?
Awarded Aug 2, 2010 at 17:35

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