419

Answers

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6

Decomposition into irreducibles of symmetric powers of irreps.

12

Why are affine Lie algebras called affine?

4

Relating two characterizations of ${\mathfrak sl}_{n > 2}$ among simple Lie algebras

5

The Jantzen-Schaper theorem

2

weights and exceptional root systems

4

Weyl group of the restriction of scalars of split reductive group

4

Modular reductions of simple characters

3

Homomorphisms of Lie groups preserving regularity

1

Connectedness of Springer Fibers

4

group generated by Coxeter elements

1

‘Generalised’ coinvariant algebras

4

Reduction of antisymmetric complex matrices

13

Borel’s Paris Lectures

1

finite abelian subgroup of a compact lie group

3

Is there an almost-direct product decomposition for disconnected reductive algebraic groups?

2

a conjugacy question in quasi-split reductive groups

2

arithmetic group over function fields and its fundamental domain

2

Extension of the Jacobi triple product identity

1

Conjugacy classes in PSL(3,q) and PSU(3,q)

2

Centralizers of Nilpotent Elements in Semisimple Lie Algebras

3

Kostant’s Theorem on Principal TDS

0

Generators for a certain congruence subgroup of SL(n,Z)

7

Functorality of universal central extension

4

Naive question about the representation theory of algebraic groups and hopf algebras

4

Lie algebra $\mathfrak{so}(9)$ as a subalgebra of $\mathfrak{f}_4$

2

Is there a list of Kazhdan-lusztig polynomials?

5

Char $p$ representations of $SL_2(\mathbb{F}_p)$ and $GL_2(\mathbb{F}_p)$

4

Subgroups of $SL_2(F)$ generated by unipotent elements

2

A Criterion for Reductivity of Lie Subgroups

2

Invariant subbundles of tangent bundle of flag variety