Sándor Kovács's user avatar
Sándor Kovács's user avatar
Sándor Kovács's user avatar
Sándor Kovács
  • Member for 13 years, 6 months
  • Last seen this week
3 votes
Accepted

Cohen Macaulay, free and finitely generated module

3 votes

Positive polynomials

3 votes
Accepted

An element in the product of schemes

3 votes
Accepted

homology class of an algebraic curve versus homology class of a genus zero holomorphic curve

3 votes

Uniruled + Picard number 1 = Fano?

3 votes

Embedding Theorem for big line bundles

3 votes

Given 2 sub-bundles of a given bundle, is their sum again a subvector bundle?

3 votes

Birational automorphisms of canonical models

3 votes

condition for the existence of lines on degree four hypersurface in P^3..

3 votes

Picard group of reducible varieties

3 votes

Intersection of an affine cubic and quartic: at least nine points?

3 votes

When is a holomorphic submersion with isomorphic fibers locally trivial?

3 votes

Degenerations of smooth projective varieties

3 votes

How I calculate degree of the algebraic curve?

3 votes

An easy example of a (1/quasi-)Gorenstein ring with non-trival canonical divisor class.

3 votes
Accepted

direct image functor

3 votes

Topology of the preimage of a point for degree one holomorphic maps

3 votes

Sheaf of differential and its reflexive hull on a toric variety

3 votes

Non-Ruled Minimal Surfaces

3 votes
Accepted

Homologically nice commutative rings

3 votes

How can I compute the full set of nodes of a surface?

3 votes

irreducible components of the fibre product

3 votes
Accepted

Two morphisms possess the same Viehweg's variation

3 votes
Accepted

Making a vector bundle ample by twisting with ample line bundle

3 votes

Question about surface singularities

2 votes

Why is this polynomial factorizable?

2 votes

Gorenstein varieties: why the two definitions are equivalent?

2 votes
Accepted

Pseudoeffective divisors on surfaces

2 votes

Torsion of modules

2 votes

Can a non-zero non-prime ideal become prime in a smaller ring?

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