user148212's user avatar
user148212's user avatar
user148212's user avatar
user148212
  • Member for 8 years, 8 months
  • Last seen this week
12 votes
1 answer
357 views

Branching rule of $S_n$ and Springer theory

9 votes
0 answers
271 views

Why the hyperoctahedral group is a ``reductive'' group?

8 votes
1 answer
302 views

Does $G_2(\mathbb{Z})$ depend on the choice of an integral model?

6 votes
0 answers
122 views

How to decompose cuspidal representations?

6 votes
0 answers
281 views

An analogue of Deligne--Lusztig theory for real groups?

5 votes
0 answers
272 views

On rational points in an affine space

5 votes
1 answer
514 views

When the longest element of Weyl group is rational?

5 votes
2 answers
329 views

The defining characteristic representations of Lie type groups

4 votes
0 answers
324 views

When is the etale cohomology of a surface free?

4 votes
0 answers
88 views

Counting cuspidal representations using polynomials

4 votes
1 answer
498 views

Quotient of a reductive group by a Levi subgroup and locally triviality

4 votes
0 answers
226 views

Varieties with only top $\ell$-adic cohomology not vanish?

4 votes
0 answers
156 views

Weil structures and rational structures on $\overline{\mathbb{Q}}_{\ell}$-sheaves

3 votes
1 answer
624 views

Integral model of a reductive group over a prime field

2 votes
1 answer
104 views

On components of centralisers in unipotent groups

2 votes
1 answer
343 views

When is a $\overline{\mathbb{Q}}_{\ell}$-local system the inverse image of a $\overline{\mathbb{Q}}_{\ell}$-local system?

2 votes
1 answer
263 views

A homotopy argument in etale topology

2 votes
1 answer
201 views

On cuspidal maximal tori of a connected reductive group

1 vote
0 answers
532 views

Rational structures on the flag variety over a finite field