List questions from group-actions

Published on 12 Jun 2019 - 1:52

79

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Ring of invariants of unimodular matrices acting on real square matrices

Published on 22 Mar 2026 - 20:47

396

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Is the quotient of a holomorphic group action a complex manifold?

Published on 14 Jun 2019 - 8:41

535

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Examples of proper group actions

Published on 14 Jun 2019 - 11:22

551

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Quotient Manifold Theorem for Riemannian, Complex, Symplectic, ... Manifolds

Published on 26 Mar 2026 - 12:06

206

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Action of the multiplicative group induced by a grading

Published on 25 Mar 2026 - 9:26

59

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Formula of a the group of character of a group

Published on 17 Jun 2019 - 18:28

16

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What's the term for the leaves of a graph in the orbit of a function?

Published on 20 Jun 2019 - 17:03

458

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Transitive action of a discrete group on a compact space

Published on 23 Jun 2019 - 14:44

84

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Action of a closed Lie subgroup $H$ on $G$ is proper: why $H$ need to be closed?

Published on 29 Jun 2019 - 0:02

182

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If $G$ acts on conjugation on its power set, what is the set of fixed points? What is the kernel?

Published on 30 Jun 2019 - 17:27

69

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Measures which are invariant under a group action are unique

Published on 25 Mar 2026 - 7:49

67

Views

Induced map well defined on coset space of Lie groups.

Published on 25 Mar 2026 - 6:03

99

Views

Groups of order $pq$, $p < q$, prime.

Published on 03 Jul 2019 - 9:36

49

Views

Abstract group acting on a smooth manifold

Published on 04 Jul 2019 - 10:58

List Question

Inequivalent but cycle-similar group actions

Ring of invariants of unimodular matrices acting on real square matrices

Is the quotient of a holomorphic group action a complex manifold?

Examples of proper group actions

Quotient Manifold Theorem for Riemannian, Complex, Symplectic, ... Manifolds

Action of the multiplicative group induced by a grading

Formula of a the group of character of a group

What's the term for the leaves of a graph in the orbit of a function?

Transitive action of a discrete group on a compact space

Action of a closed Lie subgroup $H$ on $G$ is proper: why $H$ need to be closed?

If $G$ acts on conjugation on its power set, what is the set of fixed points? What is the kernel?

Measures which are invariant under a group action are unique

Induced map well defined on coset space of Lie groups.

Groups of order $pq$, $p < q$, prime.

Abstract group acting on a smooth manifold

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