User Yonatan Harpaz

49 votes

4 answers

4k views

Why is there a duality between spaces and commutative algebras?

asked Sep 10, 2015 at 11:29

37 votes

3 answers

3k views

Why should affine lie algebras and quantum groups have equivalent representation theories?

asked Jul 31, 2014 at 14:48

26 votes

1 answer

1k views

Is the $\infty$-topos $Sh(X)$ hypercomplete whenever $X$ is a CW complex?

asked May 29, 2014 at 14:05

19 votes

3 answers

2k views

Is every paracompact, Hausdorff, locally contractible space homotopy equivalent to a CW complex?

asked May 23, 2014 at 10:59

14 votes

1 answer

490 views

Why is every object cofibrant in an excellent model category?

asked Jun 24, 2016 at 15:39

13 votes

1 answer

478 views

Is the operadic nerve functor an equivalence of ∞-categories?

asked Sep 15, 2016 at 17:53

11 votes

1 answer

1k views

The universal property of the unseparated derived category

asked Oct 6, 2017 at 14:28

9 votes

0 answers

151 views

When does a cobordism factorize the sphere?

asked Jun 10, 2014 at 11:07

9 votes

2 answers

1k views

Genuine equivariant ambidexterity

asked Jan 15, 2016 at 9:28

7 votes

1 answer

501 views

A vanishing condition for cup products in Galois cohomology

asked Oct 1, 2015 at 11:36

7 votes

0 answers

155 views

Do residues commute with transverse base change?

asked May 17, 2018 at 15:21

7 votes

0 answers

243 views

Reference request: retracts are summand inclusions in additive $\infty$-categories

asked Aug 28, 2019 at 14:14

5 votes

0 answers

114 views

Homological characterization of perfect resolutions

asked Dec 2, 2022 at 9:26

5 votes

0 answers

299 views

A relative version of Hensel's lemma?

asked Sep 14, 2015 at 18:28

4 votes

0 answers

119 views

Is the pushforward of an exponentiable fibration along an exponentiable fibration again exponentiable?

asked Sep 27, 2023 at 14:15

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15 Questions

Why is there a duality between spaces and commutative algebras?

Why should affine lie algebras and quantum groups have equivalent representation theories?

Is the $\infty$-topos $Sh(X)$ hypercomplete whenever $X$ is a CW complex?

Is every paracompact, Hausdorff, locally contractible space homotopy equivalent to a CW complex?

Why is every object cofibrant in an excellent model category?

Is the operadic nerve functor an equivalence of ∞-categories?

The universal property of the unseparated derived category

When does a cobordism factorize the sphere?

Genuine equivariant ambidexterity

A vanishing condition for cup products in Galois cohomology

Do residues commute with transverse base change?

Reference request: retracts are summand inclusions in additive $\infty$-categories

Homological characterization of perfect resolutions

A relative version of Hensel's lemma?

Is the pushforward of an exponentiable fibration along an exponentiable fibration again exponentiable?