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Yonatan Harpaz's user avatar
Yonatan Harpaz's user avatar
Yonatan Harpaz's user avatar
Yonatan Harpaz
  • Member for 10 years, 7 months
  • Last seen more than a month ago
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83 Answers

Score Activity Newest
76 votes
Accepted

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

60 votes
Accepted

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

49 votes
Accepted

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

26 votes
Accepted

Why study the p-completions of a space?

21 votes
Accepted

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

18 votes
Accepted

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

17 votes

Kan extensions in the $2$-category of monoidal categories

15 votes
Accepted

Example of an additive functor admitting no right derived functor

15 votes

Why Grothendieck's Homotopy Hypothesis is so difficult?

14 votes

Sheaves of complexes and complexes of sheaves

14 votes
Accepted

Dualizable object in the category of locally presentable categories

13 votes

Derived algebraic geometry: how to reach research level math?

13 votes
Accepted

Ranks of elliptic curves depend only on the field?

11 votes
Accepted

What is this symmetric simplex category, concretely?

11 votes
Accepted

How can I functorially dualise in a symmetric monoidal $(\infty,1)$-category with duals?

11 votes
Accepted

Homotopy fibers of infinity functors

10 votes
Accepted

Different definitions of derived functors

10 votes

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

10 votes

Compact space in site -> compact object in topos

9 votes
Accepted

Automorphism group of a fiber bundle surjects onto diffeomorphism group?

9 votes

Is the $\infty$-category of presentable $\infty$-categories presentable?

9 votes
Accepted

Nonabelian $H^2$ and Galois descent

9 votes
Accepted

Is every locally compactly generated space compactly generated?

9 votes
Accepted

The cofibration/fibration $\leftrightarrow$ epi/mono confusion

9 votes
Accepted

Is Set a finitely presentable object in Topoi?

8 votes
Accepted

Quillen equivalence, fibrant objects

8 votes
Accepted

Freely adding finite limits preserves some colimits?

8 votes
Accepted

Essential Klein bottle in simply connected symplectic 4 manifolds

8 votes
Accepted

Lemma 5.4.5.11 of HTT

7 votes

From relative categories to marked simplicial sets

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