List questions from galois-cohomology

Published on 28 Jan 2020 - 23:25

69

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Group action such that $H^1(G, L^{\times}) \neq \{1\}$.

Published on 04 Feb 2020 - 19:24

67

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If $A^\Gamma$ is finite why is $A/(\gamma-1)A$ trivial?

Published on 26 Mar 2026 - 19:18

45

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surjectivity of a map in Cohomology of Number Fields by Neukirch

Published on 20 Feb 2020 - 14:22

52

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A question on finding an inverse image of $\varphi-1$ over some $(\varphi, \Gamma)$-module, from an article by Cherbonnier and Colmez.

Published on 25 Mar 2026 - 7:45

191

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Global Tate Duality Exercise in Neukirch

Published on 26 Mar 2026 - 14:19

187

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Relation between the selmer group and an etale cohomology group.

Published on 26 Mar 2026 - 2:45

571

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Question about inertia groups and unramified extensions

Published on 19 Apr 2020 - 10:37

289

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Why are central simple algebras classified by cohomology?

Published on 23 Apr 2020 - 0:31

498

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Exactness of Inflation restriction sequence, Galois Cohomology

Published on 12 May 2020 - 6:51

43

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Galois Cohomology and Loop Groups

Published on 22 Mar 2026 - 8:15

123

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On prime ideal and irreducible ideal in R[X].

Published on 25 Mar 2026 - 9:28

186

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Proving that uniquely divisible torsion group is trivial in case of $H^r _{cts}(G,\mathbb Q)$

Published on 25 Mar 2026 - 9:29

220

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What does it mean to say that $G$ has a 'canonical topological generator' $\text{Frob}_{L/K}$?

Published on 25 Mar 2026 - 20:36

71

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Understanding lemma regarding fundamental class

Published on 26 Mar 2026 - 17:43

List Question

Finite Galois Cohomology of Abelian Variety

Group action such that $H^1(G, L^{\times}) \neq \{1\}$.

If $A^\Gamma$ is finite why is $A/(\gamma-1)A$ trivial?

surjectivity of a map in Cohomology of Number Fields by Neukirch

A question on finding an inverse image of $\varphi-1$ over some $(\varphi, \Gamma)$-module, from an article by Cherbonnier and Colmez.

Global Tate Duality Exercise in Neukirch

Relation between the selmer group and an etale cohomology group.

Question about inertia groups and unramified extensions

Why are central simple algebras classified by cohomology?

Exactness of Inflation restriction sequence, Galois Cohomology

Galois Cohomology and Loop Groups

On prime ideal and irreducible ideal in R[X].

Proving that uniquely divisible torsion group is trivial in case of $H^r _{cts}(G,\mathbb Q)$

What does it mean to say that $G$ has a 'canonical topological generator' $\text{Frob}_{L/K}$?

Understanding lemma regarding fundamental class

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