User Eric Wofsey

5 votes

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Is the simplicial set $(\Delta_3/\partial \Delta_3)^{\Delta_1}$ finite?

answered Jul 14, 2015 at 16:09

5 votes

Minimal Hausdorffness reversed

answered Apr 28, 2015 at 15:17

5 votes

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Minimal totally separated spaces

answered Apr 18, 2015 at 13:58

5 votes

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Does the property of being a local homeomorphism descend through split surjections?

answered May 28, 2015 at 14:12

5 votes

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Minimal $T_0$-spaces

answered Apr 6, 2015 at 14:12

5 votes

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Groups with $G^n \cong G$ for some integer $n$

answered Jun 12, 2015 at 7:03

5 votes

Two pullback diagram

answered Sep 24, 2013 at 18:30

5 votes

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Comparison of finite field extensions of $\mathbb{C}(t)$

answered Aug 6, 2014 at 22:04

5 votes

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pontryagin dual and maps between spectra

answered Aug 19, 2014 at 0:56

5 votes

Cup-squares in the mod 2 cohomology of a cell complex embedded in 3-space

answered Apr 2, 2013 at 22:17

5 votes

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is there an anyon structure analogous to spin structure for rank 2 bundle?

answered Apr 3, 2013 at 3:34

5 votes

A sufficient condition for a space to be an Eilenberg-Maclane space

answered Aug 16, 2013 at 21:47

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A version of the spectral theorem for group actions

answered Sep 13, 2013 at 3:02

5 votes

The role of the mean value theorem (MVT) in first-year calculus

answered Nov 23, 2010 at 6:13

5 votes

Spectra of $C^*$ algebras

answered Nov 11, 2009 at 15:40

5 votes

How to get product on cohomology using the K(G, n)?

answered Oct 27, 2009 at 21:46

5 votes

$E_\infty$ spectrum corresponding to $\Bbb Z_p$

answered Oct 13, 2009 at 21:03

5 votes

Model category structures on categories of complexes in abelian categories

answered Oct 6, 2009 at 22:58

4 votes

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Abelianization of Lie groups

answered Oct 26, 2009 at 21:10

4 votes

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Is a map that is locally fiberwise equivalent to a product a Hurewicz fibration?

answered Oct 27, 2009 at 17:51

4 votes

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Generators of Thick Subcategories

answered Dec 1, 2012 at 1:03

4 votes

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If a t-truncation of the unit object in a stable homotopy category is a ring object up to homotopy, can it be lifted to a ring spectrum? What about the Postnikov t-truncations of the sphere spectrum?

answered Nov 16, 2012 at 5:33

4 votes

Does $S$ being a free rank-$n$ $R$-algebra imply that $S/R$ is free rank $n-1$?

answered Feb 20, 2012 at 20:41

4 votes

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homeomorphisms on k-spaces

answered Mar 16, 2011 at 15:43

4 votes

A lost lemma about periodicity in a grid of long exact sequences?

answered Jan 3, 2013 at 20:38

4 votes

A model with $\kappa$ many automorphism and a rigid element.

answered May 23, 2014 at 13:11

4 votes

Actions of the unit circle on finite complex matrices

answered Jul 7, 2015 at 23:00

4 votes

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A quasicompact space with a net that contains no convergent strict subnet

answered Jul 6, 2015 at 21:00

4 votes

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For a ring $k$ and a set $X$, what are the $k$-algebra homomorphisms $k^X \to k$?

answered Jun 4, 2015 at 18:49

4 votes

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Connected, maximal compact, but not $T_2$

answered Apr 17, 2015 at 8:30

Stack Exchange Network

265 Answers

Is the simplicial set $(\Delta_3/\partial \Delta_3)^{\Delta_1}$ finite?

Minimal Hausdorffness reversed

Minimal totally separated spaces

Does the property of being a local homeomorphism descend through split surjections?

Minimal $T_0$-spaces

Groups with $G^n \cong G$ for some integer $n$

Two pullback diagram

Comparison of finite field extensions of $\mathbb{C}(t)$

pontryagin dual and maps between spectra

Cup-squares in the mod 2 cohomology of a cell complex embedded in 3-space

is there an anyon structure analogous to spin structure for rank 2 bundle?

A sufficient condition for a space to be an Eilenberg-Maclane space

A version of the spectral theorem for group actions

The role of the mean value theorem (MVT) in first-year calculus

Spectra of $C^*$ algebras

How to get product on cohomology using the K(G, n)?

$E_\infty$ spectrum corresponding to $\Bbb Z_p$

Model category structures on categories of complexes in abelian categories

Abelianization of Lie groups

Is a map that is locally fiberwise equivalent to a product a Hurewicz fibration?

Generators of Thick Subcategories

If a t-truncation of the unit object in a stable homotopy category is a ring object up to homotopy, can it be lifted to a ring spectrum? What about the Postnikov t-truncations of the sphere spectrum?

Does $S$ being a free rank-$n$ $R$-algebra imply that $S/R$ is free rank $n-1$?

homeomorphisms on k-spaces

A lost lemma about periodicity in a grid of long exact sequences?

A model with $\kappa$ many automorphism and a rigid element.

Actions of the unit circle on finite complex matrices

A quasicompact space with a net that contains no convergent strict subnet

For a ring $k$ and a set $X$, what are the $k$-algebra homomorphisms $k^X \to k$?

Connected, maximal compact, but not $T_2$