List questions from group-actions

Published on 25 Mar 2026 - 16:08

299

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Conjugacy classes in space of trace zero 2*2 matrices

Published on 25 Mar 2026 - 7:49

278

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Left action of a group on permutation representation

Published on 15 Apr 2019 - 11:05

44

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Continuous group action on a finitely generated group and compact Hausdorff space

Published on 25 Mar 2026 - 23:53

113

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Does the number of actions a group can have on the left cosets of a subgroup of index $n$ tell us anything about the number of such subgroups?

Published on 16 Apr 2019 - 10:07

462

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Invariant measure of a continuous group action

Published on 16 Apr 2019 - 11:23

149

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How many different ways can $\mathbb{Z}_3$ act on the set $\{1, 2, 3, 4\}$

Published on 19 Apr 2019 - 15:35

345

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Corresponding space to a irreducible part of a given representation of $S_n$

Published on 22 Apr 2019 - 17:43

86

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Orbit space of $\mathbb{Z}_2$-action on the torus $T^2$

Published on 23 Apr 2019 - 13:21

50

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What is $\times_G$ in this context?

Published on 25 Mar 2026 - 6:33

29

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Are there $\delta_n<\alpha$ and $x_n\in X$ such that $\{\varphi_{(-\delta_n, \delta_n)}(x_n):n\in\mathbb{N}\}$ is a cover for $\varphi_\mathbb{R}(x)$.

Published on 01 May 2019 - 8:09

22

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Prove that the action of the Homemorphism of the plane is n transitive for all n

Published on 02 May 2019 - 0:44

776

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Invariant Polynomials under Rotations

Published on 02 May 2019 - 21:30

484

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Lie group action on manifold and the vector field generated

Published on 25 Mar 2026 - 17:38

213

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Rational Euler number of oriented Seifert manifolds

Published on 25 Mar 2026 - 6:34

List Question

Group action in Polynomial invariant

Conjugacy classes in space of trace zero 2*2 matrices

Left action of a group on permutation representation

Continuous group action on a finitely generated group and compact Hausdorff space

Does the number of actions a group can have on the left cosets of a subgroup of index $n$ tell us anything about the number of such subgroups?

Invariant measure of a continuous group action

How many different ways can $\mathbb{Z}_3$ act on the set $\{1, 2, 3, 4\}$

Corresponding space to a irreducible part of a given representation of $S_n$

Orbit space of $\mathbb{Z}_2$-action on the torus $T^2$

What is $\times_G$ in this context?

Are there $\delta_n<\alpha$ and $x_n\in X$ such that $\{\varphi_{(-\delta_n, \delta_n)}(x_n):n\in\mathbb{N}\}$ is a cover for $\varphi_\mathbb{R}(x)$.

Prove that the action of the Homemorphism of the plane is n transitive for all n

Invariant Polynomials under Rotations

Lie group action on manifold and the vector field generated

Rational Euler number of oriented Seifert manifolds

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