List questions from finite-groups

Published on 27 Mar 2026 - 8:39

104

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Schur multiplier of $C_{2^n-1} \rtimes C_n$

Published on 26 Mar 2026 - 6:30

325

Views

Faithful Action using Sylow Subgroups

Published on 26 Mar 2026 - 3:19

82

Views

Effect of integral domain structure on the additive group of the ring

Published on 30 Jul 2019 - 13:15

126

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Challenge: find the order of an element in a Finite Abelian Group with a given presentation

Published on 25 Mar 2026 - 16:03

99

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Inner product from Jean-Pierre Serre representation theory book

Published on 31 Jul 2019 - 16:31

145

Views

Total order relations on $\mathbb{Z}_{2^n}$

Published on 30 Mar 2026 - 3:23

241

Views

Zariski-closure of finite linear groups

Published on 25 Mar 2026 - 12:26

164

Views

Nielsen & Chuang, Exercice 10.44 — Show that Centraliser($S$)= Normaliser($S$) for any subgroup $S$ of $G_n$ not containing $−I$

Published on 01 Aug 2019 - 17:51

82

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Is there an exchange lemma for permutation groups?

Published on 01 Aug 2019 - 21:17

53

Views

Matrix of finite order in the kernel of group morphism induced by the reduction morphism $M_n(\mathbb{Z}) \longrightarrow M_n(\mathbb{Z}/2\mathbb{Z})$

Published on 02 Aug 2019 - 3:40

164

Views

block structure of a subgroup

Published on 27 Mar 2026 - 12:12

904

Views

Find all groups of order $6$.

Published on 03 Aug 2019 - 9:23

608

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Structure of simple group of order 168 just via Sylow theory (fix for Math Doctor Bob)

Published on 03 Aug 2019 - 13:36

746

Views

Is an automorphism of a finite group inner when it preserves conjugacy of elements and subgroups?

Published on 03 Aug 2019 - 17:49

List Question

Finite group homomorphism

Schur multiplier of $C_{2^n-1} \rtimes C_n$

Faithful Action using Sylow Subgroups

Effect of integral domain structure on the additive group of the ring

Challenge: find the order of an element in a Finite Abelian Group with a given presentation

Inner product from Jean-Pierre Serre representation theory book

Total order relations on $\mathbb{Z}_{2^n}$

Zariski-closure of finite linear groups

Nielsen & Chuang, Exercice 10.44 — Show that Centraliser($S$)= Normaliser($S$) for any subgroup $S$ of $G_n$ not containing $−I$

Is there an exchange lemma for permutation groups?

Matrix of finite order in the kernel of group morphism induced by the reduction morphism $M_n(\mathbb{Z}) \longrightarrow M_n(\mathbb{Z}/2\mathbb{Z})$

block structure of a subgroup

Find all groups of order $6$.

Structure of simple group of order 168 just via Sylow theory (fix for Math Doctor Bob)

Is an automorphism of a finite group inner when it preserves conjugacy of elements and subgroups?

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