User Tim Perutz

52 votes

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

answered Apr 19, 2010 at 23:09

44 votes

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Can analysis detect torsion in cohomology?

answered Apr 25, 2010 at 14:28

43 votes

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Kähler structure on cotangent bundle?

answered Jun 2, 2010 at 4:01

39 votes

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Intuition for Primitive Cohomology

answered Feb 9, 2010 at 2:00

33 votes

What manifolds are bounded by RP^odd?

answered Dec 14, 2009 at 3:19

29 votes

What are the uses of the homotopy groups of spheres?

answered Apr 28, 2010 at 20:37

28 votes

Fun applications of representations of finite groups

answered Jan 14, 2010 at 22:53

26 votes

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Some basic questions about Chern-Simons theory

answered Jul 14, 2010 at 23:22

25 votes

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Can cotangent bundles see exotic smooth structures?

answered Jul 1, 2011 at 10:56

24 votes

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What is the Poincare dual of a symplectic form?

answered Oct 15, 2010 at 22:30

24 votes

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Failure of smoothing theory for topological 4-manifolds

answered Dec 7, 2009 at 0:46

23 votes

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

answered Jan 8, 2010 at 3:46

23 votes

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Stiefel-Whitney Classes over Integers?

answered Feb 27, 2010 at 22:21

23 votes

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Floer homology and status of the Arnold conjecture

answered May 27, 2010 at 23:05

20 votes

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Timeline of cohomology (1935 to 1938)

answered Sep 25, 2010 at 16:33

20 votes

When are two symplectic forms "isotopic"?

answered Aug 2, 2010 at 15:09

20 votes

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Highly connected, compact complex manifolds

answered Jun 13, 2010 at 21:27

19 votes

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Morse theory in infinite dimensions

answered Mar 9, 2017 at 4:14

18 votes

A question about MathSciNet etiquette

answered Aug 27, 2011 at 16:21

18 votes

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Seiberg-Witten theory on 4-manifolds with boundary

answered Mar 15, 2010 at 22:16

17 votes

Cohomology rings and 2D TQFTs

answered Dec 13, 2009 at 17:45

17 votes

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open problems in Seiberg-Witten Theory on 4-Manifolds

answered Feb 5, 2013 at 3:24

15 votes

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Hochschild homology of Fukaya category in mirror symmetry

answered Feb 1, 2011 at 4:46

15 votes

References for "modern" proof of Newlander-Nirenberg Theorem

answered Jun 17, 2010 at 15:27

14 votes

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Slice knots and exotic $\mathbb R^4$

answered Oct 18, 2010 at 15:01

14 votes

What are the most attractive Turing undecidable problems in mathematics?

answered Jan 12, 2010 at 16:00

14 votes

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

answered Mar 28, 2010 at 19:56

14 votes

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Obstruction bundle for spaces with Kuranishi structure

answered Jan 26, 2010 at 22:46

14 votes

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Kuranishi structures vs polyfolds

answered Jan 30, 2010 at 6:00

14 votes

Automorphisms of Riemann surface and mapping class

answered Oct 16, 2011 at 20:39

Stack Exchange Network

111 Answers

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

Can analysis detect torsion in cohomology?

Kähler structure on cotangent bundle?

Intuition for Primitive Cohomology

What manifolds are bounded by RP^odd?

What are the uses of the homotopy groups of spheres?

Fun applications of representations of finite groups

Some basic questions about Chern-Simons theory

Can cotangent bundles see exotic smooth structures?

What is the Poincare dual of a symplectic form?

Failure of smoothing theory for topological 4-manifolds

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

Stiefel-Whitney Classes over Integers?

Floer homology and status of the Arnold conjecture

Timeline of cohomology (1935 to 1938)

When are two symplectic forms "isotopic"?

Highly connected, compact complex manifolds

Morse theory in infinite dimensions

A question about MathSciNet etiquette

Seiberg-Witten theory on 4-manifolds with boundary

Cohomology rings and 2D TQFTs

open problems in Seiberg-Witten Theory on 4-Manifolds

Hochschild homology of Fukaya category in mirror symmetry

References for "modern" proof of Newlander-Nirenberg Theorem

Slice knots and exotic $\mathbb R^4$

What are the most attractive Turing undecidable problems in mathematics?

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

Obstruction bundle for spaces with Kuranishi structure

Kuranishi structures vs polyfolds

Automorphisms of Riemann surface and mapping class