User mhahthhh

4 votes

1 answer

267 views

Definition of free group action on a scheme

asked Jul 18 at 20:22

3 votes

1 answer

85 views

Restriction of scalar commutes with taking maximal subtorus for semisimple group G

asked Jun 6 at 19:22

3 votes

0 answers

71 views

Explicit correspondence between quasi-coherent sheaves on [U/G] and representations

asked Mar 12, 2023 at 18:20

2 votes

0 answers

198 views

Picard group of a DM-stack

asked Apr 11, 2023 at 23:09

2 votes

0 answers

214 views

Explicit computation of inertia stacks

asked Mar 10, 2023 at 16:46

2 votes

2 answers

270 views

Why is $P^n(K)$ compact, when $K$ is a local field?

asked Aug 28, 2021 at 0:44

2 votes

0 answers

190 views

Representation of locally profinite group

asked Nov 10, 2021 at 21:51

2 votes

0 answers

154 views

Field of definition for a representation and Brauer group

asked Mar 3, 2022 at 16:09

2 votes

0 answers

156 views

Classifying stack for finite flat group scheme

asked Mar 21 at 22:17

2 votes

0 answers

135 views

Irreducible non-reductive subgroup in GL(n) over a characteristic 0 field

asked Sep 30 at 20:46

1 vote

1 answer

524 views

Centralizer of an element in a matrix Lie group whose Jordan form is given

asked May 11, 2022 at 15:34

1 vote

0 answers

764 views

equivalent definition of Deligne torus

asked Jun 4, 2022 at 1:58

1 vote

1 answer

405 views

Exterior square of $\operatorname{Sp}(4,\mathbb{C})$ is isomorphic to $\operatorname{SO}(5,\mathbb{C})$

asked Aug 22, 2022 at 16:23

1 vote

0 answers

223 views

etale fundamental group of global quotient algebraic stacks

asked May 30, 2023 at 0:26

0 votes

0 answers

165 views

Topological property of an algebraic stack and its presentation

asked Apr 15, 2023 at 2:58

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15 Questions

Definition of free group action on a scheme

Restriction of scalar commutes with taking maximal subtorus for semisimple group G

Explicit correspondence between quasi-coherent sheaves on [U/G] and representations

Picard group of a DM-stack

Explicit computation of inertia stacks

Why is $P^n(K)$ compact, when $K$ is a local field?

Representation of locally profinite group

Field of definition for a representation and Brauer group

Classifying stack for finite flat group scheme

Irreducible non-reductive subgroup in GL(n) over a characteristic 0 field

Centralizer of an element in a matrix Lie group whose Jordan form is given

equivalent definition of Deligne torus

Exterior square of $\operatorname{Sp}(4,\mathbb{C})$ is isomorphic to $\operatorname{SO}(5,\mathbb{C})$

etale fundamental group of global quotient algebraic stacks

Topological property of an algebraic stack and its presentation