List questions from group-actions

Published on 27 Mar 2026 - 7:14

44

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Cooking up invariants of a group action

Published on 26 Mar 2026 - 11:17

54

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Symmetric and asymmetric graphs

Published on 30 Mar 2026 - 4:55

70

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How is this group action over a colimit continuous?

Published on 29 Mar 2026 - 13:40

110

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Tangent space of a quotient of an algebraic variety

Published on 26 Mar 2026 - 12:37

257

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Exchangeable strictly vs. almost surely

Published on 03 Nov 2023 - 9:14

34

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Showing that two orbit spaces are isomorphic

Published on 25 Mar 2026 - 19:02

109

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Group laws of the flow of time-dependent vector field

Published on 04 Nov 2023 - 13:56

111

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If there is subgroup of finite index $n$ and $G$ is finitely generated then there is a subgroup of $G$ that has index $n$ and is characteristic in $G$

Published on 30 Mar 2026 - 6:42

31

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Group action generated by two homeomorphism and group action $\varphi:\langle a, b\rangle\times X\to X$

Published on 08 Nov 2023 - 5:53

25

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Reference about connected groupoids and action groupoids

Published on 25 Mar 2026 - 4:35

37

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Group Linear and Orthogonal Matrices

Published on 12 Nov 2023 - 11:13

81

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Action of symmetry group on homology?

Published on 27 Mar 2026 - 18:09

466

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$H$ acts on $G/H$. Show that $\mathrm{Fix}(H) = G/H$

Published on 27 Mar 2026 - 4:21

89

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The difference in the definition of the action of the symmetric group on abstract tensor spaces and concrete tensor spaces

Published on 31 Mar 2026 - 17:51

List Question

Is group defined by action on $\mathbb{R}$ a free group?

Cooking up invariants of a group action

Symmetric and asymmetric graphs

How is this group action over a colimit continuous?

Tangent space of a quotient of an algebraic variety

Exchangeable strictly vs. almost surely

Showing that two orbit spaces are isomorphic

Group laws of the flow of time-dependent vector field

If there is subgroup of finite index $n$ and $G$ is finitely generated then there is a subgroup of $G$ that has index $n$ and is characteristic in $G$

Group action generated by two homeomorphism and group action $\varphi:\langle a, b\rangle\times X\to X$

Reference about connected groupoids and action groupoids

Group Linear and Orthogonal Matrices

Action of symmetry group on homology?

$H$ acts on $G/H$. Show that $\mathrm{Fix}(H) = G/H$

The difference in the definition of the action of the symmetric group on abstract tensor spaces and concrete tensor spaces

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