user2013's user avatar
user2013's user avatar
user2013's user avatar
user2013
  • Member for 12 years, 1 month
  • Last seen more than 9 years ago
28 votes
3 answers
5k views

Motivation of Virasoro algebra

14 votes
2 answers
3k views

What do correlation functions compute in CFT?

11 votes
1 answer
640 views

Diophantine theory of homogeneous cubic polynomials

10 votes
4 answers
2k views

Strongly Noetherian property. When is the tensor $A\otimes_{k}B$ Noetherian for Noetherian rings $A$ and $B$?

10 votes
3 answers
1k views

How to understand $Ext(\mathcal{O}_{Y},\mathcal{O}_{Z})$ for subvarieties $Y,Z\subset X$?

9 votes
1 answer
498 views

Point modules of quantum projective space $\mathbb{P}^n$

9 votes
2 answers
1k views

Global dimensions of non-commutative rings

8 votes
1 answer
681 views

A question on an elliptic fibration of the Enriques surface

7 votes
1 answer
510 views

A question on chiral rings and geometry of the vacuum bundle

5 votes
2 answers
580 views

Moduli space of modules over non-commutative rings

4 votes
0 answers
2k views

Online Number Theory Video?

4 votes
0 answers
285 views

Deformation of modules over noncommutaitve rings

4 votes
1 answer
506 views

Are rational sections of a vector bundle useful?

4 votes
2 answers
494 views

A question on a projective bundle $\mathbb{P}(L\oplus \mathcal{O}_X)$

3 votes
2 answers
594 views

Intuitive meaning of $k$-polarized Abelian surface?

3 votes
1 answer
501 views

Non-separatedness of moduli space of sheaves

3 votes
1 answer
291 views

Balanced dualizing complex vs rigid dualizing complex?

3 votes
1 answer
208 views

Is $\pi_1(\widetilde{X/G})$ always finite if $\pi_1(X)$ is finite?

3 votes
0 answers
259 views

The central fiber of this family of surfaces?

3 votes
1 answer
522 views

A question on existence of degeneration of Enriques surface.

2 votes
0 answers
62 views

Boundedness of modules on AS regular algebras

2 votes
1 answer
217 views

How to obtain $Z(\Sigma_f)=\text{Trace}\ \Sigma(f)$ in TQFT?

1 vote
0 answers
86 views

Classification of involutions of the lattice $H\oplus H(k)^{\oplus2}$ for $k=5,6$?

1 vote
0 answers
364 views

Moduli space of K3 surfaces and Bogomolov-Tian-Todorov theorem

1 vote
0 answers
63 views

Does Castelnuovo-Mumford regularity hold for this $\mathbb{C}$-algebra$?

0 votes
1 answer
175 views

Stability of $T_{\mathbb{P}^2}$ and $\Omega_{\mathbb{P}^2}$?

0 votes
0 answers
164 views

Complex manifold $X$ with $\dim H^0(X,\Omega^{\dim_{\mathbb{C}} X})>2$