List questions from group-cohomology

Published on 18 Jan 2024 - 14:29

32

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Modular symbols, Manin symbols, two and three term relation

Published on 25 Mar 2026 - 7:43

58

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Action of base space on homology of homotopy fiber, when the fiber is an Eilenberg Maclane space.

Published on 05 Feb 2024 - 9:56

111

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Confusion about cohomology groups $H^i(S_3,\mathbb{Z})$

Published on 08 Feb 2024 - 3:21

55

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Second Cohomology group with a non-trivial action

Published on 08 Feb 2024 - 6:19

80

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Projective dimension bounded by cohomological dimension

Published on 08 Feb 2024 - 16:33

24

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Group cohomology with coefficients in a representation

Published on 13 Feb 2024 - 16:46

84

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Source for 5 term exact sequence in group cohomology

Published on 26 Mar 2026 - 4:51

86

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Confusion about projective resolution: group cohomology

Published on 14 Feb 2024 - 7:04

52

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Triviality of $H^2(\mathbb{R},U(1))$

Published on 18 Feb 2024 - 18:09

20

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What is the definition of an affine $G$-module?

Published on 19 Feb 2024 - 14:35

77

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Is galois cohomology invariant under inner forms and not just pure inner forms?

Published on 20 Feb 2024 - 2:29

322

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ch. 8.3 Exercise 1 in Cohomology of Number Fields

Published on 27 Mar 2026 - 6:17

29

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Spectral sequence of cohomology of $\mathbb{Z}$-extension

Published on 26 Mar 2026 - 4:53

31

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How to use dimension shifting in group cohomology

Published on 27 Mar 2026 - 6:17

List Question

Inflation-restriction exact sequence in nonabelian group cohomology

Modular symbols, Manin symbols, two and three term relation

Action of base space on homology of homotopy fiber, when the fiber is an Eilenberg Maclane space.

Confusion about cohomology groups $H^i(S_3,\mathbb{Z})$

Second Cohomology group with a non-trivial action

Projective dimension bounded by cohomological dimension

Group cohomology with coefficients in a representation

Source for 5 term exact sequence in group cohomology

Confusion about projective resolution: group cohomology

Triviality of $H^2(\mathbb{R},U(1))$

What is the definition of an affine $G$-module?

Is galois cohomology invariant under inner forms and not just pure inner forms?

ch. 8.3 Exercise 1 in Cohomology of Number Fields

Spectral sequence of cohomology of $\mathbb{Z}$-extension

How to use dimension shifting in group cohomology

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