user148212's user avatar
user148212's user avatar
user148212's user avatar
user148212
  • Member for 9 years, 8 months
  • Last seen this week
15 votes
1 answer
502 views

Branching rule of $S_n$ and Springer theory

4 votes
0 answers
96 views

Counting cuspidal representations using polynomials

8 votes
1 answer
333 views

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

2 votes
1 answer
114 views

On components of centralisers in unipotent groups

9 votes
0 answers
285 views

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

4 votes
0 answers
417 views

When is the etale cohomology of a surface free?

5 votes
2 answers
342 views

The defining characteristic representations of Lie type groups

6 votes
0 answers
126 views

How to decompose cuspidal representations?

2 votes
1 answer
209 views

On cuspidal maximal tori of a connected reductive group

5 votes
1 answer
556 views

When the longest element of Weyl group is rational?

5 votes
0 answers
281 views

On rational points in an affine space

3 votes
1 answer
736 views

Integral model of a reductive group over a prime field

2 votes
1 answer
271 views

A homotopy argument in etale topology

4 votes
0 answers
230 views

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

4 votes
1 answer
547 views

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

2 votes
1 answer
359 views

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

6 votes
0 answers
298 views

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

4 votes
0 answers
157 views

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

1 vote
0 answers
562 views

Rational structures on the flag variety over a finite field