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shenghao
  • Member for 14 years, 5 months
  • Last seen more than 4 years ago
  • Beijing
7 votes
0 answers
777 views

What is the decomposition group at $p$ in the Galois group unramified outside $\ell?$

2 votes
0 answers
233 views

Counter-examples for the quasi-unipotence of monodromy over an annulus?

3 votes
2 answers
601 views

Group extensions with a non-commutative kernel

3 votes
0 answers
486 views

Where can I find the two books of Weil on abelian varieties?

8 votes
2 answers
2k views

Does every regular Noetherian domain have finite Krull dimension?

10 votes
1 answer
631 views

Is there an explicit example of a coefficient sheaf for which hard Lefschetz fails?

8 votes
2 answers
1k views

Does S^6 have the structure of an algebraic variety?

2 votes
0 answers
186 views

A local-global question on group representations

4 votes
2 answers
333 views

Analogue of Shafarevich-Ogg's theorem over complex numbers

6 votes
1 answer
2k views

References on semismall maps

3 votes
0 answers
271 views

What would be a characteristic-$p$ analogue for $C^{\infty}$-fiber bundles?

7 votes
1 answer
590 views

Does intersection pairing on `$IH^*(X)$` agree with cup-product on `$H^*(X)$`?

4 votes
1 answer
3k views

self-dual representations

3 votes
0 answers
135 views

Irreducibility of a representation of $\Gamma(N)$

15 votes
0 answers
758 views

Lifting varieties from char. $p$ to char. 0 after alterations

4 votes
2 answers
2k views

homotopy limits of dg categories

6 votes
2 answers
606 views

Is the weight filtration a topological invariant?

10 votes
1 answer
529 views

"geometric" interpretation of the alternating sum of intersection cohomology groups

6 votes
1 answer
392 views

finite quotients of fundamental groups in positive characteristic

4 votes
1 answer
759 views

intersection pairing on intersection cohomology

3 votes
2 answers
1k views

supersingular elliptic curve in char. 2 or 3

9 votes
3 answers
2k views

Tensor product of simple representations

7 votes
0 answers
902 views

Poincaré duality for intersection cohomology

11 votes
4 answers
2k views

Picard group of reducible varieties

3 votes
1 answer
676 views

References for constructible sheaves on complex analytic stacks

11 votes
1 answer
2k views

blow-up proper varieties to projective ones

5 votes
0 answers
126 views

global units on moduli spaces of abelian varieties

8 votes
1 answer
841 views

References on Moishezon spaces in English/French

12 votes
1 answer
1k views

Hodge structures on algebraic spaces

22 votes
3 answers
5k views

The algebraic fundamental group of a reductive algebraic group