List questions from group-cohomology

Published on 16 Jun 2014 - 0:27

153

Views

What can we say about groups $G$ with $H_3(G)=0$?

Published on 21 Jun 2014 - 19:31

582

Views

Kunneth formula for group homology

Published on 10 Jul 2014 - 10:14

273

Views

Schur Multiplier of general linear group

Published on 25 Jul 2014 - 18:43

1.1k

Views

What are the homology groups of an abelian group?

Published on 26 Jul 2014 - 9:56

313

Views

Cohomology group $H^n(G, \mathbb{R}/\mathbb{Z})$ as a continuous group or a Lie group?

Published on 29 Jul 2014 - 15:17

580

Views

Understanding a proof about splitting of short exact sequences.

Published on 01 Aug 2014 - 3:32

896

Views

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

Published on 01 Aug 2014 - 21:57

704

Views

First cohomology group of direct products

Published on 04 Aug 2014 - 8:01

473

Views

How can I find $\mathbb Z_4$ as an extension of $\mathbb Z_2$ by $\mathbb Z_2$?

Published on 25 Mar 2026 - 6:04

278

Views

Supplement for reading Group cohomology from Serre Local Fields

Published on 13 Aug 2014 - 6:19

171

Views

Another description for the map $\text{Ext}^1_\mathbb{Z}(A,G)\to H^2(G,A)$

Published on 25 Mar 2026 - 7:43

370

Views

Rearding notation of (Relatively)Projective/ (Relatively)Injective in Group cohomology

Published on 23 Aug 2014 - 19:13

165

Views

Confusion in Serre's Local fields book

Published on 25 Mar 2026 - 11:01

60

Views

What maps of $k$-algebras $A\to B$ induce finite maps $\mathrm{Ext}_B^(k,k)\to\mathrm{Ext}_A^(k,k)$?

Published on 04 Sep 2014 - 23:03

List Question

How does the first group cohomology classify torsors?

What can we say about groups $G$ with $H_3(G)=0$?

Kunneth formula for group homology

Schur Multiplier of general linear group

What are the homology groups of an abelian group?

Cohomology group $H^n(G, \mathbb{R}/\mathbb{Z})$ as a continuous group or a Lie group?

Understanding a proof about splitting of short exact sequences.

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

First cohomology group of direct products

How can I find $\mathbb Z_4$ as an extension of $\mathbb Z_2$ by $\mathbb Z_2$?

Supplement for reading Group cohomology from Serre Local Fields

Another description for the map $\text{Ext}^1_\mathbb{Z}(A,G)\to H^2(G,A)$

Rearding notation of (Relatively)Projective/ (Relatively)Injective in Group cohomology

Confusion in Serre's Local fields book

What maps of $k$-algebras $A\to B$ induce finite maps $\mathrm{Ext}_B^(k,k)\to\mathrm{Ext}_A^(k,k)$?

Trending Questions

Popular # Hahtags

Popular Questions