Tim Perutz's user avatar
Tim Perutz's user avatar
Tim Perutz's user avatar
Tim Perutz
  • Member for 14 years, 3 months
  • Last seen this week
52 votes
Accepted

How should one present curl and divergence in an undergraduate multivariable calculus class?

43 votes
Accepted

Kähler structure on cotangent bundle?

43 votes
Accepted

Can analysis detect torsion in cohomology?

38 votes
Accepted

Intuition for Primitive Cohomology

33 votes

What manifolds are bounded by RP^odd?

29 votes

What are the uses of the homotopy groups of spheres?

27 votes

Fun applications of representations of finite groups

26 votes
Accepted

Some basic questions about Chern-Simons theory

25 votes
Accepted

Can cotangent bundles see exotic smooth structures?

24 votes
Accepted

What is the Poincare dual of a symplectic form?

24 votes
Accepted

Failure of smoothing theory for topological 4-manifolds

23 votes
Accepted

Hochschild (co)homology of Fukaya categories and (quantum) (co)homology

23 votes
Accepted

Stiefel-Whitney Classes over Integers?

22 votes
Accepted

Floer homology and status of the Arnold conjecture

20 votes
Accepted

Timeline of cohomology (1935 to 1938)

20 votes

When are two symplectic forms "isotopic"?

20 votes
Accepted

Highly connected, compact complex manifolds

18 votes
Accepted

Seiberg-Witten theory on 4-manifolds with boundary

18 votes

A question about MathSciNet etiquette

18 votes
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Morse theory in infinite dimensions

17 votes
Accepted

open problems in Seiberg-Witten Theory on 4-Manifolds

17 votes

Cohomology rings and 2D TQFTs

15 votes

References for "modern" proof of Newlander-Nirenberg Theorem

15 votes
Accepted

Hochschild homology of Fukaya category in mirror symmetry

14 votes

Automorphisms of Riemann surface and mapping class

14 votes
Accepted

Slice knots and exotic $\mathbb R^4$

14 votes

What are the most attractive Turing undecidable problems in mathematics?

14 votes
Accepted

"Physical" construction of nonconstant meromorphic functions on compact Riemann surfaces?

14 votes
Accepted

Kuranishi structures vs polyfolds

13 votes
Accepted

Obstruction bundle for spaces with Kuranishi structure