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Jef's user avatar
Jef
  • Member for 7 years, 6 months
  • Last seen this week
  • UK
Profile Activity

17 Answers

Score Activity Newest
12 votes
Accepted

Does $G_2(\mathbb{Z})$ depend on the choice of an integral model?

11 votes

Motivation for the Jacobian Variety

10 votes
Accepted

rationality of weighted projective space

8 votes

If it quacks like an abelian variety over a finite field

8 votes
Accepted

A noneffective descent datum: isomorphism not satisfying the cocycle condition

5 votes
Accepted

Properties of stabilizers of adjoint action general linear group

4 votes
Accepted

Generalization of torsion points on Jacobian of genus 2 over finite fields (with respect to the theta divisor)

4 votes
Accepted

Dual family of torsion-free rank-1 sheaves on Gorenstein curves

4 votes
Accepted

When is the fiberwise compactification (not) equal to the compactification of the family?

3 votes
Accepted

About the type of a polarization of an abelian variety

3 votes
Accepted

Integers in residue classes $\mathcal{O}_K/\mathfrak{p}$

3 votes
Accepted

Selmer groups and fppf cohomology

3 votes
Accepted

Proper morphism

2 votes

Compactified Jacobian of a rational curve whose normalization is a set-theoretic bijection

2 votes
Accepted

On degree and section of a line bundle on a smooth plane quintic

2 votes
Accepted

Extending $G$-torsors on open subsets of affine space

0 votes
Accepted

When does a torsor of the generic fiber extend?