List questions from group-actions

Published on 19 Apr 2013 - 5:02

344

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What's the idea of an action of a group?

Published on 22 Apr 2013 - 22:50

122

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Question about Sylow's Theorem/Conjugation of the set of conjugates of P

Published on 24 Apr 2013 - 1:50

162

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Need to show that order of orbits under group action is non-trivial and intersection of two p-groups is a proper subgroup

Published on 24 Apr 2013 - 6:11

222

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The classifying space of a gauge group

Published on 25 Mar 2026 - 23:36

870

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About the category $\mathrm{Set}(G)$

Published on 05 May 2013 - 16:53

242

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Free objects in $\mathrm{Set}(G).$

Published on 06 May 2013 - 12:02

175

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Show that $h \equiv 1 \pmod p$, where $h$ is the number of subgroups of order $p$ and $p$ divides the group order.

Published on 09 May 2013 - 19:24

658

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Rotman's Introduction to to the theory of groups. Exercise 3.45.

Published on 27 Mar 2026 - 0:04

182

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Action of a Lie group on a coset of its subgroup

Published on 16 May 2013 - 8:30

750

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Group actions and associated bundles

Published on 26 Mar 2026 - 1:00

102

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Let $G$ be transitive.Then $\beta\in \operatorname{fix}(G_\alpha)$ implies $G_\alpha = G_\beta$

Published on 20 May 2013 - 8:47

304

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Function spaces and transitive group actions

Published on 20 May 2013 - 13:44

750

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In a transitive action there is a bijection between the fixed points of a stabilizer of a and the lateral clases of the stabilizer in his normalizer

Published on 20 May 2013 - 16:01

58

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Infinite imprimitive non abelian group?

Published on 22 May 2013 - 7:16

List Question

Studying the action of $GL(V)$ on the vector space $V$

What's the idea of an action of a group?

Question about Sylow's Theorem/Conjugation of the set of conjugates of P

Need to show that order of orbits under group action is non-trivial and intersection of two p-groups is a proper subgroup

The classifying space of a gauge group

About the category $\mathrm{Set}(G)$

Free objects in $\mathrm{Set}(G).$

Show that $h \equiv 1 \pmod p$, where $h$ is the number of subgroups of order $p$ and $p$ divides the group order.

Rotman's Introduction to to the theory of groups. Exercise 3.45.

Action of a Lie group on a coset of its subgroup

Group actions and associated bundles

Let $G$ be transitive.Then $\beta\in \operatorname{fix}(G_\alpha)$ implies $G_\alpha = G_\beta$

Function spaces and transitive group actions

In a transitive action there is a bijection between the fixed points of a stabilizer of a and the lateral clases of the stabilizer in his normalizer

Infinite imprimitive non abelian group?

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