User Kevin H. Lin

74 votes

21 answers

25k views

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

asked Apr 19, 2010 at 19:58

63 votes

11 answers

13k views

Non-commutative algebraic geometry

asked Dec 5, 2009 at 22:53

57 votes

25 answers

11k views

Cocktail party math [closed]

asked Nov 13, 2009 at 22:43

55 votes

8 answers

7k views

Applications of Grothendieck-Riemann-Roch?

asked Oct 27, 2010 at 7:25

50 votes

10 answers

14k views

Definition of "simplicial complex"

asked Nov 20, 2009 at 16:40

46 votes

4 answers

16k views

What is Chern-Simons theory?

asked Oct 31, 2009 at 1:12

44 votes

10 answers

25k views

Fourier transform for dummies [closed]

asked Oct 13, 2009 at 20:21

41 votes

7 answers

5k views

Simplicial objects

asked Oct 16, 2009 at 1:17

39 votes

9 answers

5k views

What is a deformation of a category?

asked Nov 13, 2009 at 14:59

38 votes

6 answers

9k views

Deformation theory and differential graded Lie algebras

asked Oct 12, 2009 at 21:08

38 votes

7 answers

5k views

Why should algebraic objects have naturally associated topological spaces? (Formerly: What is a topological space?)

asked Feb 8, 2010 at 11:42

36 votes

9 answers

5k views

Computing fundamental groups and singular cohomology of projective varieties

asked Feb 12, 2010 at 8:29

33 votes

4 answers

3k views

What is the precise statement of the correspondence between stable Higgs bundles on a Riemann surface, solutions to Hitchin's self-duality equations on the Riemann surface, and representations of the fundamental group of the Riemann surface?

asked Oct 5, 2010 at 15:44

31 votes

7 answers

14k views

Advice on doing mathematical research [closed]

asked Oct 13, 2009 at 21:05

30 votes

3 answers

3k views

Mumford conjecture: Heuristic reasons? Generalizations? ... Algebraic geometry approaches?

asked Jan 10, 2010 at 8:44

25 votes

4 answers

7k views

Is the Fukaya category "defined"?

asked Oct 27, 2009 at 22:00

25 votes

1 answer

4k views

What are Gromov-Witten invariants in terms of physics?

asked Oct 25, 2009 at 22:51

24 votes

6 answers

4k views

A few questions about Kontsevich formality

asked Jul 22, 2010 at 3:35

23 votes

4 answers

6k views

Algebraic de Rham cohomology vs. analytic de Rham cohomology

asked Mar 12, 2010 at 3:25

23 votes

3 answers

2k views

What can we do with a coarse moduli space that we can't do with a DM moduli stack?

asked Mar 13, 2010 at 1:44

22 votes

5 answers

2k views

Homological algebra and calculus (as in Newton)

asked Oct 15, 2009 at 20:36

21 votes

5 answers

5k views

Mirror symmetry mod p?! ... Physics mod p?!

asked Jan 14, 2010 at 3:41

21 votes

4 answers

5k views

Extending vector bundles on a given open subscheme, reprise

asked Aug 16, 2010 at 19:38

20 votes

1 answer

4k views

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

asked Jan 8, 2010 at 1:13

20 votes

2 answers

2k views

Cohomology rings and 2D TQFTs

asked Dec 13, 2009 at 17:13

19 votes

5 answers

4k views

Derived categories and homotopy categories

asked Oct 12, 2009 at 19:15

18 votes

6 answers

4k views

Why and how are moduli spaces of (semi)stable vector bundles well-behaved?

asked Oct 9, 2009 at 22:11

16 votes

4 answers

2k views

Deligne's conjecture (the little discs operad one)

asked Oct 12, 2009 at 19:59

16 votes

2 answers

3k views

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

asked Apr 8, 2010 at 0:23

16 votes

2 answers

2k views

Deformation quantization and quantum cohomology (or Fukaya category) -- are they related?

asked Sep 1, 2010 at 20:39

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74 Questions

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

Non-commutative algebraic geometry

Cocktail party math [closed]

Applications of Grothendieck-Riemann-Roch?

Definition of "simplicial complex"

What is Chern-Simons theory?

Fourier transform for dummies [closed]

Simplicial objects

What is a deformation of a category?

Deformation theory and differential graded Lie algebras

Why should algebraic objects have naturally associated topological spaces? (Formerly: What is a topological space?)

Computing fundamental groups and singular cohomology of projective varieties

What is the precise statement of the correspondence between stable Higgs bundles on a Riemann surface, solutions to Hitchin's self-duality equations on the Riemann surface, and representations of the fundamental group of the Riemann surface?

Advice on doing mathematical research [closed]

Mumford conjecture: Heuristic reasons? Generalizations? ... Algebraic geometry approaches?

Is the Fukaya category "defined"?

What are Gromov-Witten invariants in terms of physics?

A few questions about Kontsevich formality

Algebraic de Rham cohomology vs. analytic de Rham cohomology

What can we do with a coarse moduli space that we can't do with a DM moduli stack?

Homological algebra and calculus (as in Newton)

Mirror symmetry mod p?! ... Physics mod p?!

Extending vector bundles on a given open subscheme, reprise

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

Cohomology rings and 2D TQFTs

Derived categories and homotopy categories

Why and how are moduli spaces of (semi)stable vector bundles well-behaved?

Deligne's conjecture (the little discs operad one)

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

Deformation quantization and quantum cohomology (or Fukaya category) -- are they related?