List questions from orbifolds

Published on 22 Feb 2026 - 21:46

244

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About the definition of orbifolds

Published on 19 Oct 2018 - 1:49

468

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Is every quotient by a finite group an orbifold?

Published on 16 Dec 2018 - 18:12

45

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Orbifold Subchart Definition

Published on 08 Jan 2019 - 21:10

771

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Is the torus an orbifold?

Published on 02 Mar 2019 - 12:52

205

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Is a free and discrete group action on the plane a covering space action?

Published on 31 May 2019 - 4:28

544

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Why the teardrop is a bad orbifold?

Published on 02 Jun 2019 - 17:52

56

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Equivalence of Lie groupoids $\phi: H \rightarrow G$ induces an equivalence of categories $\phi^*: G\text{-spaces} \rightarrow H\text{-spaces}$.

Published on 22 Feb 2026 - 21:53

42

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Is a trivial $T^2\times S^1$ bundle with a $\mathbb{Z}_4$ orbifold action the same as a $T^2$ bundle over $S^1$ with a $\mathbb{Z}_4$ twist?

Published on 05 Sep 2019 - 9:42

584

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Reference - Riemannian Orbifolds

Published on 02 May 2014 - 4:11

555

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General introduction to orbifolds?

Published on 22 Jun 2014 - 21:18

104

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Quotient of Poincare dodecahedral space-example of spherical orbifold

Published on 28 Jul 2014 - 6:47

168

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Singular locus of orientable 3-orbifolds

Published on 01 Sep 2014 - 22:08

732

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Does Stokes' Theorem hold on spaces with singular points?

Published on 13 Oct 2014 - 13:49

267

Views

The proof of the quotient space of a manifold with properly discontinuous action is an orbifold.

Published on 27 Feb 2020 - 23:31

List Question

pull back of Groupoid spaces

About the definition of orbifolds

Is every quotient by a finite group an orbifold?

Orbifold Subchart Definition

Is the torus an orbifold?

Is a free and discrete group action on the plane a covering space action?

Why the teardrop is a bad orbifold?

Equivalence of Lie groupoids $\phi: H \rightarrow G$ induces an equivalence of categories $\phi^*: G\text{-spaces} \rightarrow H\text{-spaces}$.

Is a trivial $T^2\times S^1$ bundle with a $\mathbb{Z}_4$ orbifold action the same as a $T^2$ bundle over $S^1$ with a $\mathbb{Z}_4$ twist?

Reference - Riemannian Orbifolds

General introduction to orbifolds?

Quotient of Poincare dodecahedral space-example of spherical orbifold

Singular locus of orientable 3-orbifolds

Does Stokes' Theorem hold on spaces with singular points?

The proof of the quotient space of a manifold with properly discontinuous action is an orbifold.

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