User Mikhail Borovoi

2 votes

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Local Tate duality for F-vector space

answered Apr 22, 2023 at 15:45

2 votes

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Regular embeddings of a reductive groups with induced center

answered Jul 10, 2021 at 20:17

2 votes

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Question about coadjoint orbits of compact connected Lie groups

answered Nov 9, 2022 at 14:42

2 votes

Picard group of $(SL(n)\times SL(m))$-orbits

answered Jan 18, 2021 at 7:59

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Image of square map on reductive group

answered Feb 26, 2021 at 13:45

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Regarding extensions of finite groups by Tori

answered Jun 25, 2020 at 19:09

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Imperfect Tate (cup product) pairing in Galois cohomology?

answered Nov 25, 2019 at 16:43

2 votes

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Element of Weyl chamber contracting $\mathbb{A}^n_k$ to a point

answered Apr 24, 2020 at 6:55

2 votes

Do rational points in a split reductive group act transitively on the orbits of the Cartan subalgebra (w.r.t. automorphism group of Lie algebra)?

answered Mar 12, 2020 at 16:52

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Quotienting $G(\mathbb{Q})_{+}$ by $G^{\text{sc}}(\mathbb{Q})$ and inner forms

answered Mar 20, 2020 at 7:42

2 votes

A subgroup of index 2 for a solvable finite group transitively acting on a finite set of cardinality $2m$ where $m$ is odd

answered Oct 22, 2023 at 21:12

2 votes

Compute corestriction map on group cohomology in Magma

answered Nov 6 at 19:28

1 vote

$\mathbb{Q}$-forms of $\operatorname{SL}_4(\mathbb{R})$ inside $\operatorname{SL}_8(\mathbb{R})$

answered Oct 28, 2023 at 7:18

1 vote

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Connecting homomorphism in non-abelian cohomology

answered Feb 15 at 17:15

1 vote

Reference for Langlands dual homomorphisms

answered Mar 8 at 6:10

1 vote

Non-commuting elements of finite orders in a reductive group over a p-adic field

answered Oct 15 at 19:12

1 vote

Is $({F^{\times})^{ diag}}\backslash(GL_2 \times E^{\times})_{det=\mathbb{N}}$ a unitary group?

answered Jan 11, 2019 at 6:36

1 vote

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Coinvariant representative of homogeneous space cohomology

answered Aug 9, 2019 at 13:06

1 vote

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Explicit cocycles for the first Galois cohomology of a $p$-adic torus

answered Oct 18, 2021 at 18:06

1 vote

Indecomposable integral representations of a group of order 2 "by hand"

answered Nov 2, 2021 at 13:08

1 vote

Diagonalisation of invariant hermitian forms and irreducible representations of tori actions

answered May 30, 2018 at 17:24

1 vote

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Real Adjoint representations of complex type

answered Feb 18, 2017 at 20:39

1 vote

Non-semisimple symmetric subgroups of simply connected simple algebraic groups

answered Mar 28, 2017 at 5:36

1 vote

Quotient space of $\mathbb{C}^5$ under the action of $SL(2,\mathbb{C})$

answered Dec 17, 2010 at 10:04

1 vote

Conjugation of homogeneous spaces

answered Jan 9, 2013 at 16:32

1 vote

on z-extensions

answered Feb 14, 2013 at 20:16

1 vote

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gluing gerbes over a spectrum of a field

answered Apr 23, 2013 at 21:24

1 vote

Groupoids vs. action groupoids

answered Jun 1, 2013 at 9:38

0 votes

Infinite Galois descent for finitely generated commutative algebras over a field

answered Aug 3, 2018 at 16:07

0 votes

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Tangent spaces of an indecomposable family of abelian varieties (parametrized by a Hodge type Shimura variety)

answered Apr 18, 2016 at 16:45

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122 Answers

Local Tate duality for F-vector space

Regular embeddings of a reductive groups with induced center

Question about coadjoint orbits of compact connected Lie groups

Picard group of $(SL(n)\times SL(m))$-orbits

Image of square map on reductive group

Regarding extensions of finite groups by Tori

Imperfect Tate (cup product) pairing in Galois cohomology?

Element of Weyl chamber contracting $\mathbb{A}^n_k$ to a point

Do rational points in a split reductive group act transitively on the orbits of the Cartan subalgebra (w.r.t. automorphism group of Lie algebra)?

Quotienting $G(\mathbb{Q})_{+}$ by $G^{\text{sc}}(\mathbb{Q})$ and inner forms

A subgroup of index 2 for a solvable finite group transitively acting on a finite set of cardinality $2m$ where $m$ is odd

Compute corestriction map on group cohomology in Magma

$\mathbb{Q}$-forms of $\operatorname{SL}_4(\mathbb{R})$ inside $\operatorname{SL}_8(\mathbb{R})$

Connecting homomorphism in non-abelian cohomology

Reference for Langlands dual homomorphisms

Non-commuting elements of finite orders in a reductive group over a p-adic field

Is $({F^{\times})^{ diag}}\backslash(GL_2 \times E^{\times})_{det=\mathbb{N}}$ a unitary group?

Coinvariant representative of homogeneous space cohomology

Explicit cocycles for the first Galois cohomology of a $p$-adic torus

Indecomposable integral representations of a group of order 2 "by hand"

Diagonalisation of invariant hermitian forms and irreducible representations of tori actions

Real Adjoint representations of complex type

Non-semisimple symmetric subgroups of simply connected simple algebraic groups

Quotient space of $\mathbb{C}^5$ under the action of $SL(2,\mathbb{C})$

Conjugation of homogeneous spaces

on z-extensions

gluing gerbes over a spectrum of a field

Groupoids vs. action groupoids

Infinite Galois descent for finitely generated commutative algebras over a field

Tangent spaces of an indecomposable family of abelian varieties (parametrized by a Hodge type Shimura variety)