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VA.
  • Member for 14 years, 4 months
28 votes
Accepted

Contracting divisors to a point

36 votes
Accepted

Example Wanted: When Does Čech Cohomology Fail to be the same as Derived Functor Cohomology?

25 votes
Accepted

Ample line bundles, sections, morphisms to projective space

10 votes

Line bundles vs. Cartier divisors on a non-integral scheme

37 votes

How do I see LaTeX math on any web page and in email?

21 votes
Accepted

When are there enough projective sheaves on a space X?

6 votes

When are there enough projective sheaves on a space X?

9 votes

Flatness for family of hypersurfaces

11 votes
Accepted

Detecting tilings by toric geometry

50 votes
Accepted

A question regarding a claim of V. I. Arnold

12 votes
Accepted

A-valued points of projective space

9 votes
Accepted

About isogenies of abelian varieties

37 votes

Is there an underlying explanation for the magical powers of the Schwarzian derivative?

2 votes

Mirror of Flop?

8 votes

When are Ehrhart functions of compact convex sets polynomials?

31 votes
Accepted

Why didn't Vladimir Arnold get the Fields Medal in 1974?

18 votes

Is the Euler characteristic a birational invariant

9 votes

Ways of formulating homological algebra without diagram chasing

10 votes

How do I see LaTeX math on any web page and in email?

7 votes

What are the prime ideals of k[[x,y]]?

16 votes
Accepted

Why does the Euler characteristic of a toric variety equal the number of vertices in the defining polytope?

11 votes

What are examples of mathematical concepts named after the wrong people? (Stigler's law)

73 votes

How do I see LaTeX math on any web page and in email?

11 votes

Applications of algebraic geometry over a field with one element

8 votes
Accepted

Is there an obvious way for showing singularities are quotient?

13 votes
Accepted

What is known about the MMP over non-algebraically closed fields

14 votes
Accepted

Confusion about how the first cohomology classifies torsors

37 votes
Accepted

Extending vector bundles on a given open subscheme

29 votes

When is a blow-up non-singular?

6 votes
Accepted

Applications of Faber's conjecture