List questions from homological-algebra

Published on 25 Mar 2026 - 16:03

2.3k

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Simplicial homology of the skeleton of a simplex

Published on 28 Jul 2014 - 4:43

1.2k

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Question about the Betti numbers

Published on 26 Mar 2026 - 21:42

412

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The semidirect product as a deformation of the direct product

Published on 02 Apr 2026 - 13:26

897

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Action of $G/H$ on $H_n(H;M)$

Published on 26 Mar 2026 - 9:42

113

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Derived categories of curves equivalent then the curves are isomorphic

Published on 01 Aug 2014 - 22:45

698

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Hypercohomology: finding a resolution for the de Rham complex of $\mathbb{CP}^1 $

Published on 25 Mar 2026 - 22:26

705

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First cohomology group of direct products

Published on 26 Mar 2026 - 13:01

86

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Generalisation of cochain complexes and "curvature"

Published on 05 Aug 2014 - 13:54

195

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Example of Tor-Rigid Module

Published on 07 Aug 2014 - 18:42

201

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Composition of bicartesian squares

Published on 07 Aug 2014 - 21:36

1.9k

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Does the rank of homology and cohomology groups always coincide?

Published on 09 Aug 2014 - 11:54

687

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Derived Functors and nice Resolutions

Published on 11 Aug 2014 - 3:35

130

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An example of short exact sequence which is not exact triangle.

Published on 25 Mar 2026 - 2:53

44

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Question about Chains complexes

Published on 11 Aug 2014 - 20:45

List Question

Universal property of tensor product of dg algebras

Simplicial homology of the skeleton of a simplex

Question about the Betti numbers

The semidirect product as a deformation of the direct product

Action of $G/H$ on $H_n(H;M)$

Derived categories of curves equivalent then the curves are isomorphic

Hypercohomology: finding a resolution for the de Rham complex of $\mathbb{CP}^1 $

First cohomology group of direct products

Generalisation of cochain complexes and "curvature"

Example of Tor-Rigid Module

Composition of bicartesian squares

Does the rank of homology and cohomology groups always coincide?

Derived Functors and nice Resolutions

An example of short exact sequence which is not exact triangle.

Question about Chains complexes

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