User solbap

36 votes

4 answers

5k views

Construction of the Stiefel-Whitney and Chern Classes

asked Feb 2, 2010 at 9:49

31 votes

6 answers

3k views

What can you do with a compact moduli space?

asked Apr 20, 2010 at 7:43

23 votes

3 answers

3k views

Why are they called Spherical Varieties?

asked Jan 25, 2011 at 20:49

19 votes

2 answers

2k views

When can you reverse the orientation of a complex manifold and still get a complex manifold?

asked Nov 30, 2010 at 21:41

19 votes

2 answers

4k views

non principally polarized complex abelian varieties

asked Mar 3, 2010 at 18:53

19 votes

2 answers

9k views

does a line bundle always have a degree

asked Oct 10, 2009 at 8:34

18 votes

1 answer

4k views

How do you describe vector bundles on elliptic curves?

asked Oct 30, 2010 at 19:15

13 votes

0 answers

371 views

Complex manifold which is algebraic away from codimension \ge 2

asked Mar 22, 2012 at 4:59

13 votes

2 answers

1k views

Example: Principal G bundle that is not Zariski locally trivial, G not finite and G simply connected

asked Dec 15, 2013 at 0:37

12 votes

2 answers

634 views

reductive group orbits in P(V)?

asked Nov 15, 2011 at 1:41

11 votes

2 answers

1k views

Do smooth ind schemes have Dualizing sheafs?

asked Feb 5, 2012 at 8:51

10 votes

1 answer

427 views

Can curves differentiate vector bundles on P^2?

asked Mar 30, 2011 at 14:43

10 votes

2 answers

1k views

Counting/constructing Toric Varieties

asked Aug 5, 2010 at 22:03

9 votes

5 answers

2k views

Analogues of the Weierstrass p function for higher genus compact Riemann surfaces

asked Oct 27, 2009 at 22:18

7 votes

1 answer

409 views

lowest weight representation of loop groups

asked May 5, 2011 at 8:36

7 votes

0 answers

384 views

Reference for the Thick Affine Grassmanian

asked Aug 7, 2011 at 7:23

7 votes

2 answers

1k views

Vector Bundles on normal surfaces

asked Nov 14, 2012 at 0:15

6 votes

3 answers

948 views

Dolbeault Cohomology of $\mathbb{P}^1$

asked Mar 29, 2010 at 7:19

6 votes

2 answers

2k views

The Poincare Bundle(s) on C \times J

asked May 11, 2010 at 4:37

6 votes

3 answers

537 views

Weil divisors on non Noetherian schemes

asked Oct 1, 2009 at 1:57

5 votes

1 answer

596 views

What do representations of infinite-dimensional Heisenberg groups look like?

asked Sep 23, 2010 at 11:03

5 votes

2 answers

1k views

Special divisors on hyperelliptic curves

asked Apr 21, 2010 at 5:22

5 votes

1 answer

306 views

Is SL_n/S(GL_k x GL_n-k) symmetric?

asked Jul 8, 2013 at 8:20

5 votes

0 answers

333 views

Constructing spherical embeddings from colored fans

asked Dec 1, 2010 at 23:28

4 votes

0 answers

325 views

Stack theoretic image?

asked Aug 7, 2013 at 11:23

4 votes

2 answers

547 views

Holomorphic trivialization of $(x,y) \subset \mathbb{C}[x,y]/(y^2 - x^3 + x)$

asked Apr 14, 2014 at 6:55

4 votes

2 answers

832 views

Homeomorphism onto a closed subset of a scheme that isn't a closed immersion

asked Feb 14, 2010 at 5:36

4 votes

0 answers

287 views

Properties of schemes determined by field valued points [closed]

asked Jun 15, 2015 at 22:59

3 votes

0 answers

148 views

$\operatorname{Ext}^2(O,\omega)$ as a higher extension on $\mathbb{P}^1 \times \mathbb{P}^1$

asked Jul 20, 2017 at 1:25

3 votes

1 answer

1k views

Principal bundles in the etale and Zariski topology and extensions of the structure group

asked Aug 2, 2011 at 23:05

Stack Exchange Network

38 Questions

Construction of the Stiefel-Whitney and Chern Classes

What can you do with a compact moduli space?

Why are they called Spherical Varieties?

When can you reverse the orientation of a complex manifold and still get a complex manifold?

non principally polarized complex abelian varieties

does a line bundle always have a degree

How do you describe vector bundles on elliptic curves?

Complex manifold which is algebraic away from codimension \ge 2

Example: Principal G bundle that is not Zariski locally trivial, G not finite and G simply connected

reductive group orbits in P(V)?

Do smooth ind schemes have Dualizing sheafs?

Can curves differentiate vector bundles on P^2?

Counting/constructing Toric Varieties

Analogues of the Weierstrass p function for higher genus compact Riemann surfaces

lowest weight representation of loop groups

Reference for the Thick Affine Grassmanian

Vector Bundles on normal surfaces

Dolbeault Cohomology of $\mathbb{P}^1$

The Poincare Bundle(s) on C \times J

Weil divisors on non Noetherian schemes

What do representations of infinite-dimensional Heisenberg groups look like?

Special divisors on hyperelliptic curves

Is SL_n/S(GL_k x GL_n-k) symmetric?

Constructing spherical embeddings from colored fans

Stack theoretic image?

Holomorphic trivialization of $(x,y) \subset \mathbb{C}[x,y]/(y^2 - x^3 + x)$

Homeomorphism onto a closed subset of a scheme that isn't a closed immersion

Properties of schemes determined by field valued points [closed]

$\operatorname{Ext}^2(O,\omega)$ as a higher extension on $\mathbb{P}^1 \times \mathbb{P}^1$

Principal bundles in the etale and Zariski topology and extensions of the structure group