Yonatan Harpaz

Member for 10 years, 7 months
Last seen more than a month ago

math.univ-paris13.fr/~harpaz

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homotopy-theory

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Answers

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76

The "derived drift" is pretty unsatisfying and dangerous to category theory (or at least, to me)

Dec 26, 2017

60

What is the mistake in the proof of the Homotopy hypothesis by Kapranov and Voevodsky?

Mar 29, 2016

49

What to do if you notice a substantial improvement to a result in a paper whilst refereeing it?

Dec 9, 2018

26

Why study the p-completions of a space?

Sep 13, 2015

21

What's the stabilization of the $\infty$-category of $\infty$-categories?

Aug 25, 2016

Questions

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49

Why is there a duality between spaces and commutative algebras?

Sep 10, 2015

37

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

Jul 31, 2014

26

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

May 29, 2014

19

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

May 23, 2014

14

Why is every object cofibrant in an excellent model category?

Jun 24, 2016

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homotopy-theory

236

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ct.category-theory

220

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33

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higher-category-theory

192

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24

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at.algebraic-topology

189

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23

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infinity-categories

66

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14

posts

Reputation

+10

Compact space in site -> compact object in topos

+10

Automorphism group of a fiber bundle surjects onto diffeomorphism group?

+20

Relation between the Hochschild cohomology of group algebras and groupoids

+10

Dualizable object in the category of locally presentable categories

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