Christian Liedtke's user avatar
Christian Liedtke's user avatar
Christian Liedtke's user avatar
Christian Liedtke
  • Member for 12 years, 7 months
  • Last seen more than 8 years ago
28 votes
Accepted

Higher dimensional version of the Hurwitz formula?

13 votes

Hodge numbers of reduction mod $p$

12 votes

Use of Hilbert Schemes in Arithmetic?

11 votes

When does $\operatorname{Aut}(X)=\operatorname{Bir}(X)$ hold?

10 votes

Divisorial contraction: when is the image an algebraic space or a stack?

10 votes

Generalisations of Riemann-Roch for surfaces

9 votes

How do non-trivial global differentials give non-trivial cohomology classes in positive characteristic

8 votes
Accepted

Hodge spectral sequence for algebraic stacks

5 votes

Characterizations of Abelian varieties (3-folds) in positive characteristic

5 votes

every involution of an Enriques surface is

5 votes

Simplest example of jumping of cohomology of structure sheaf in smooth families?

4 votes

Quotients of rational surfaces

2 votes

Why $\pi_1(X)\cong \pi_1(Y)$ for a double cover $\pi:X\to Y$ with a nef, smooth and big branch locus?