List questions from group-extensions

Published on 22 Mar 2026 - 13:37

496

Views

Proof of the Schur–Zassenhaus theorem without using homological algebra?

Published on 20 Mar 2026 - 5:39

64

Views

Generated a non-Abelian group from a Lie group and nontrivial $\mathbb{Z}_2$ action

Published on 22 Mar 2026 - 7:57

45

Views

Determine possible $p$-groups from center and quotient

Published on 17 Mar 2026 - 15:37

654

Views

Baer sum of two extensions

Published on 22 Mar 2026 - 0:54

144

Views

Algorithms to determine the explicit forms of possible group extensions

Published on 20 Mar 2026 - 18:15

147

Views

How to compute sheaf cohomology of a classifying space?

Published on 22 Mar 2026 - 5:18

1.6k

Views

Finding whether an extension is normal

Published on 22 Mar 2026 - 10:57

26

Views

Candidate for showing extension is simple

Published on 22 Mar 2026 - 3:09

29

Views

Can someone check If this extension is correct?

Published on 20 Mar 2026 - 5:17

89

Views

Upper central series, semidirect products and a lifting property (argument verification)

Published on 20 Mar 2026 - 11:34

164

Views

Split extensions of $G/U$ by elementary abelian $p$-group and $H^1(U, \mathbb{Z}/p\mathbb{Z})$

Published on 24 Mar 2026 - 23:45

165

Views

A question related to group cohomology and spectral sequences

Published on 25 Mar 2026 - 1:17

204

Views

Extension of a cyclic group by an abelian group

Published on 20 Mar 2026 - 14:24

131

Views

Group actions on spectral sequences of group cohomology

Published on 25 Mar 2026 - 1:17

List Question

Non-split central extension of Z by a finite simple non-abelian group

Proof of the Schur–Zassenhaus theorem without using homological algebra?

Generated a non-Abelian group from a Lie group and nontrivial $\mathbb{Z}_2$ action

Determine possible $p$-groups from center and quotient

Baer sum of two extensions

Algorithms to determine the explicit forms of possible group extensions

How to compute sheaf cohomology of a classifying space?

Finding whether an extension is normal

Candidate for showing extension is simple

Can someone check If this extension is correct?

Upper central series, semidirect products and a lifting property (argument verification)

Split extensions of $G/U$ by elementary abelian $p$-group and $H^1(U, \mathbb{Z}/p\mathbb{Z})$

A question related to group cohomology and spectral sequences

Extension of a cyclic group by an abelian group

Group actions on spectral sequences of group cohomology

Trending Questions

Popular # Hahtags

Popular Questions