User J Verma - MathOverflow

J Verma

Member for 13 years, 6 months
Last seen more than 8 years ago

Network profile

24 Questions

Score Activity Newest Views

34 votes

6 answers

10k views

Roadmap for Mirror Symmetry

asked Sep 26, 2010 at 23:11

27 votes

2 answers

4k views

BRST cohomology

asked Oct 30, 2010 at 4:38

26 votes

2 answers

6k views

Wall Crossing in Physics and Mathematics

asked Jan 3, 2011 at 7:14

25 votes

5 answers

7k views

What is a square root of a line bundle?

asked Nov 3, 2010 at 16:08

18 votes

4 answers

6k views

Derived categories of coherent sheaves: suggested references?

asked Oct 17, 2010 at 6:35

16 votes

1 answer

3k views

Donaldson-Thomas Invariants in Physics

asked Sep 15, 2011 at 5:17

14 votes

1 answer

3k views

Witten's topological twisting

asked Oct 23, 2010 at 5:47

13 votes

4 answers

3k views

Calabi - Yau Manifolds

asked Oct 18, 2010 at 22:59

12 votes

7 answers

2k views

Heuristic behind $A_{\infty}$ - algebras

asked Mar 6, 2011 at 18:36

11 votes

3 answers

5k views

Serre's FAC versus Hartshorne as an introduction to sheaves in algebraic geometry

asked Nov 14, 2010 at 6:26

9 votes

2 answers

3k views

how to think of monodromy transformations

asked Nov 25, 2010 at 18:02

8 votes

0 answers

1k views

triangulated/derived categories in Physics and algebraic geometry

asked Dec 30, 2010 at 6:35

7 votes

1 answer

1k views

stability conditions in the sense of Kontsevich-Soibelman

asked Dec 27, 2010 at 21:16

7 votes

3 answers

2k views

what is large compex structure limit of CY moduli space

asked Nov 22, 2010 at 20:36

5 votes

3 answers

950 views

equivariant index of Dirac Operator on $S^{2}$

asked Apr 14, 2011 at 15:45

4 votes

1 answer

1k views

vector multiplet/hypermultiplet moduli space of String Theory

asked Jun 14, 2011 at 3:48

3 votes

1 answer

394 views

Hamiltonian Reduction and Affine quotient

asked Nov 22, 2011 at 22:38

3 votes

1 answer

295 views

notion of stability in a category

asked Apr 12, 2011 at 1:36

2 votes

0 answers

364 views

birational equivalence and mirror CYs

asked Nov 22, 2010 at 20:57

2 votes

1 answer

679 views

Are there non-supersymmetric and/or non-Calabi-Yau topological sigma models?

asked Nov 1, 2010 at 5:49

2 votes

1 answer

607 views

Configuration space of points in Euclidean Space with fixed distances

asked Nov 22, 2011 at 22:16

1 vote

1 answer

908 views

Hirzebruch surfaces

asked Jun 16, 2011 at 19:30

1 vote

2 answers

824 views

is complex moduli space of a Calabi - Yau Kahler

asked Jan 4, 2011 at 20:37

1 vote

0 answers

422 views

topological B model

asked Nov 29, 2010 at 6:43