User Allan Edmonds

40 votes

Accepted

Do "surjective" degree zero maps exist?

answered Apr 8, 2010 at 16:58

25 votes

Is every (finite) group action on R^n by diffeomorphisms conjugate to a linear action?

answered Apr 29, 2010 at 12:34

20 votes

Do finite groups acting on a ball have a fixed point?

answered Oct 18, 2011 at 23:36

13 votes

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Ramified covers of 3-torus

answered Nov 15, 2009 at 20:47

13 votes

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Loopspace of an Eilenberg Maclane space K(G,n)

answered Sep 30, 2010 at 0:18

12 votes

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Question concerning h-cobordisms

answered Jun 7, 2011 at 22:34

12 votes

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Maximal degree of a map between orientable surfaces

answered Aug 3, 2023 at 12:02

11 votes

Restriction of a branched cover to its branch locus

answered Oct 28, 2020 at 14:42

11 votes

Can an action of a compact Lie group be nontrivial if it is trivial on the boundary?

answered May 15, 2011 at 23:58

11 votes

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Ramified cover of 4-sphere

answered Dec 12, 2009 at 22:39

11 votes

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A conjecture of Montesinos

answered Dec 21, 2009 at 2:11

9 votes

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Can dividing out a group action can increase the Lebesgue dimension ?

answered Oct 5, 2010 at 0:50

9 votes

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Fixed component of an $S^1$ action on $S^n$

answered Aug 28, 2013 at 20:06

9 votes

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Pseudofree $T^2$ actions on spheres

answered Aug 29, 2013 at 0:24

8 votes

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Branched coverings of non-orientable 3-manifolds

answered Oct 16, 2023 at 14:08

8 votes

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Making spheres shellable

answered Feb 5, 2015 at 19:39

6 votes

What are some mathematical sculptures?

answered Jul 20, 2010 at 13:19

5 votes

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What is a reference for the Hasse-Minkowski classification of indefinite forms?

answered Mar 5, 2010 at 21:39

5 votes

How do most people write permutations?

answered Dec 9, 2013 at 15:08

5 votes

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Cyclic groups acting on balls, and interior fixed points

answered Dec 7, 2015 at 18:35

5 votes

Accepted

Isotopy of periodic homeomorphisms of a surface along periodic homeomorphisms

answered Oct 29, 2018 at 20:44

4 votes

Equivariant handle decompositions

answered Aug 9, 2012 at 13:27

4 votes

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A reference for an equivariant Morse Lemma

answered Jun 10, 2014 at 17:59

3 votes

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Under what conditions are two orientation-reversing involutions of a compact surface equivalent?

answered Jul 2, 2020 at 1:31

3 votes

$G$-action on the integral homology of a compact surface

answered Apr 29, 2016 at 14:12

2 votes

Terminology for polygons

answered Aug 2, 2015 at 17:39

2 votes

Question on coverings and and their classifying spaces

answered Mar 13, 2011 at 22:59

2 votes

An obstruction theory for promoting homotopy equivalences that are equivariant maps to equivariant homotopy equivalences?

answered Jun 29, 2010 at 1:55

2 votes

Accepted

Truncated exact sequence of homotopy groups

answered Feb 23, 2010 at 19:05

1 vote

Fixed point set for a subcircle of torus actions

answered Apr 12, 2016 at 17:42

Stack Exchange Network

30 Answers

Do "surjective" degree zero maps exist?

Is every (finite) group action on R^n by diffeomorphisms conjugate to a linear action?

Do finite groups acting on a ball have a fixed point?

Ramified covers of 3-torus

Loopspace of an Eilenberg Maclane space K(G,n)

Question concerning h-cobordisms

Maximal degree of a map between orientable surfaces

Restriction of a branched cover to its branch locus

Can an action of a compact Lie group be nontrivial if it is trivial on the boundary?

Ramified cover of 4-sphere

A conjecture of Montesinos

Can dividing out a group action can increase the Lebesgue dimension ?

Fixed component of an $S^1$ action on $S^n$

Pseudofree $T^2$ actions on spheres

Branched coverings of non-orientable 3-manifolds

Making spheres shellable

What are some mathematical sculptures?

What is a reference for the Hasse-Minkowski classification of indefinite forms?

How do most people write permutations?

Cyclic groups acting on balls, and interior fixed points

Isotopy of periodic homeomorphisms of a surface along periodic homeomorphisms

Equivariant handle decompositions

A reference for an equivariant Morse Lemma

Under what conditions are two orientation-reversing involutions of a compact surface equivalent?

$G$-action on the integral homology of a compact surface

Terminology for polygons

Question on coverings and and their classifying spaces

An obstruction theory for promoting homotopy equivalences that are equivariant maps to equivariant homotopy equivalences?

Truncated exact sequence of homotopy groups

Fixed point set for a subcircle of torus actions