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17 votes

4 answers

2k views

What are supersingular varieties?

asked May 2, 2012 at 6:50

15 votes

2 answers

2k views

Is there a periodic table for knots?

asked Dec 3, 2011 at 17:02

23 votes

5 answers

5k views

Has any attempt been made to classify finite groupoids?

asked Oct 6, 2012 at 3:42

23 votes

3 answers

2k views

What's "bad" about unstable sheaves?

asked Oct 10, 2012 at 5:04

5 votes

0 answers

397 views

What are the relation between Rep(G) and Rep(S_n)?

asked Mar 9, 2012 at 3:23

3 votes

0 answers

377 views

What's the relation between henselianization and completion?

asked Oct 14, 2012 at 22:49

4 votes

2 answers

664 views

Examples of Calabi-Yau that are birational to each other?

asked Sep 9, 2012 at 2:07

23 votes

2 answers

4k views

Why are injective modules more complicated than projective modules?

asked Jul 27, 2012 at 0:39

13 votes

2 answers

2k views

Geometric Meaning of higher pushforward for open immersions

asked Jul 15, 2012 at 19:08

9 votes

4 answers

2k views

Lurie's "Virtual fundamental classes" and "Geometric derived stacks"

asked Jun 3, 2012 at 20:06

4 votes

1 answer

948 views

What is known about the Bridgeland stability manifold?

asked May 30, 2012 at 1:12

5 votes

1 answer

703 views

Has the cotangent complex been used in context other than morphism of schemes?

asked May 25, 2012 at 3:31

6 votes

1 answer

640 views

When do we have derived "Hartogs" for quasi-coherent sheaves?

asked May 18, 2012 at 6:12

15 votes

1 answer

789 views

Has the Weil conjectures been proved using other (Weil) cohomology theory?

asked Mar 29, 2012 at 23:40

16 votes

3 answers

4k views

How far can one get with the Gross-Siebert program?

asked Mar 1, 2012 at 16:05

0 votes

1 answer

286 views

Is $(\mathbb{Z}_l-\text{mod})\otimes \mathbb{Q}_l\cong \mathbb{Q}_l-Vect$ ?

asked Mar 5, 2012 at 5:52

Stack Exchange Network

16 Questions

What are supersingular varieties?

Is there a periodic table for knots?

Has any attempt been made to classify finite groupoids?

What's "bad" about unstable sheaves?

What are the relation between Rep(G) and Rep(S_n)?

What's the relation between henselianization and completion?

Examples of Calabi-Yau that are birational to each other?

Why are injective modules more complicated than projective modules?

Geometric Meaning of higher pushforward for open immersions

Lurie's "Virtual fundamental classes" and "Geometric derived stacks"

What is known about the Bridgeland stability manifold?

Has the cotangent complex been used in context other than morphism of schemes?

When do we have derived "Hartogs" for quasi-coherent sheaves?

Has the Weil conjectures been proved using other (Weil) cohomology theory?

How far can one get with the Gross-Siebert program?

Is $(\mathbb{Z}_l-\text{mod})\otimes \mathbb{Q}_l\cong \mathbb{Q}_l-Vect$ ?