List questions from group-actions

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Action of $D_{2n}$ on pairs of opposite vertices of a regular n-gon

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Need help in showing that the standard action of $\mathbb{C}^*$ on $\mathbb{C}^n-\{0\}$ is proper.

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Possible manifold quotients of spheres by finite isometric actions

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Lift of symplectic form to the cotangent bundle

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$(0,+\infty)/\Bbb{Z}$ homeomorphic to $S^1$

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Subgroups of $GL_n$ and group actions

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Do the sizes of the orbits determine a permutation representation?

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About group actions and orbits that are singletons.

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Transitive G-sets $G/A$,$G/B$ Isomorphic iff $\exists x$ st. $x^{-1}Ax = B$

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The action of $SL(2,\mathbb C)$ on $\mathbb CP^n$

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Prove that an inner product is positive definite.

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Proving that a group acting freely on a tree is a free group

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Group of order 27 acting on set with 135 elements

Published on 28 May 2017 - 11:14

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Group action on isometric embeddings of compact set with uniform topology is continuous.

Published on 29 May 2017 - 12:29

List Question

Action of a coset space in GAP

Action of $D_{2n}$ on pairs of opposite vertices of a regular n-gon

Need help in showing that the standard action of $\mathbb{C}^*$ on $\mathbb{C}^n-\{0\}$ is proper.

Possible manifold quotients of spheres by finite isometric actions

Lift of symplectic form to the cotangent bundle

$(0,+\infty)/\Bbb{Z}$ homeomorphic to $S^1$

Subgroups of $GL_n$ and group actions

Do the sizes of the orbits determine a permutation representation?

About group actions and orbits that are singletons.

Transitive G-sets $G/A$,$G/B$ Isomorphic iff $\exists x$ st. $x^{-1}Ax = B$

The action of $SL(2,\mathbb C)$ on $\mathbb CP^n$

Prove that an inner product is positive definite.

Proving that a group acting freely on a tree is a free group

Group of order 27 acting on set with 135 elements

Group action on isometric embeddings of compact set with uniform topology is continuous.

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