Kevin H. Lin's user avatar
Kevin H. Lin's user avatar
Kevin H. Lin's user avatar
Kevin H. Lin
  • Member for 14 years, 5 months
  • Last seen more than a month ago
74 votes
21 answers
24k views

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

61 votes
11 answers
13k views

Non-commutative algebraic geometry

57 votes
25 answers
11k views

Cocktail party math [closed]

55 votes
8 answers
6k views

Applications of Grothendieck-Riemann-Roch?

50 votes
10 answers
14k views

Definition of "simplicial complex"

44 votes
4 answers
15k views

What is Chern-Simons theory?

44 votes
10 answers
25k views

Fourier transform for dummies [closed]

41 votes
7 answers
4k views

Simplicial objects

39 votes
9 answers
5k views

What is a deformation of a category?

38 votes
7 answers
5k views

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

36 votes
9 answers
5k views

Computing fundamental groups and singular cohomology of projective varieties

35 votes
6 answers
8k views

Deformation theory and differential graded Lie algebras

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?

30 votes
7 answers
13k views

Advice on doing mathematical research [closed]

29 votes
3 answers
3k views

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

25 votes
4 answers
7k views

Is the Fukaya category "defined"?

25 votes
1 answer
4k views

What are Gromov-Witten invariants in terms of physics?

24 votes
6 answers
4k views

A few questions about Kontsevich formality

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?

22 votes
4 answers
5k views

Algebraic de Rham cohomology vs. analytic de Rham cohomology

22 votes
5 answers
2k views

Homological algebra and calculus (as in Newton)

21 votes
5 answers
4k views

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

21 votes
4 answers
5k views

Extending vector bundles on a given open subscheme, reprise

20 votes
2 answers
1k views

Cohomology rings and 2D TQFTs

19 votes
1 answer
4k views

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

18 votes
5 answers
4k views

Derived categories and homotopy categories

17 votes
6 answers
4k views

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

16 votes
4 answers
2k views

Deligne's conjecture (the little discs operad one)

16 votes
2 answers
3k views

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

15 votes
2 answers
2k views

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