David Ben-Zvi's user avatar
David Ben-Zvi's user avatar
David Ben-Zvi's user avatar
David Ben-Zvi
  • Member for 14 years, 5 months
  • Last seen this week
83 votes

What non-categorical applications are there of homotopical algebra?

77 votes

What is the motivation for a vertex algebra?

68 votes

Tannakian Formalism

62 votes
Accepted

Consequences of Geometric Langlands

55 votes
Accepted

Double affine Hecke algebras and mainstream mathematics

50 votes
Accepted

Is there an analogue of curvature in algebraic geometry?

42 votes
Accepted

What is the equivariant cohomology of a group acting on itself by conjugation?

41 votes
Accepted

D-modules, deRham spaces and microlocalization

38 votes
Accepted

Deformation theory and differential graded Lie algebras

35 votes

triangulated vs. dg/A-infinity

35 votes
Accepted

Groups, quantum groups and (fill in the blank)

34 votes
Accepted

Why isn't the orbifold cohomology of $pt/G$ equal to the cohomology of $BG$?

34 votes
Accepted

What is an $(\infty,1)$-topos, and why is this a good setting for doing differential geometry?

32 votes
Accepted

A precise statement of the categorical version of geometric Langlands conjecture

32 votes

What is significant about the half-sum of positive roots?

28 votes
Accepted

What role does the "dual Coxeter number" play in Lie theory (and should it be called the "Kac number")?

27 votes
Accepted

Smooth dg algebras (and perfect dg modules and compact dg modules)

26 votes
Accepted

Geometric interpretation of group rings?

26 votes

How to think about CM rings?

26 votes
Accepted

Kapranov's analogies

26 votes

What are the local Langlands conjectures nowadays, for connected reductive groups over a $p$-adic field?

25 votes

New Geometric Methods in Number Theory and Automorphic Forms

25 votes
Accepted

How to unify various reconstruction theorems (Gabriel-Rosenberg, Tannaka,Balmers)

25 votes

Computations in $\infty$-categories

25 votes

4D TQFT from a modular tensor category

23 votes
Accepted

Is there triangulated category version of Barr-Beck's theorem?

22 votes

Can Chern class/character be categorified?

21 votes

Why the BGG category O?

21 votes
Accepted

What is the significance that the Springer resolution is a moment map?

21 votes
Accepted

A good example of a curve for geometric Langlands

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