On Kodaira energy and adjoint reduction of polarized threefolds.
On K-spanned embeddings of projectiv manifolds.
On large Picard groups and the Hasse Principle for curves and K3 surfaces
On limiting rational curves.
On manifolds homeomorphic to ...P2#8... .
On Manifolds that Cannot be Ample Divisors.
On Manin's conjecture for a certain singular cubic surface
On meromorphic functions with maximal defect sum
The purpose of this article is twofold. The first is to give necessary conditions for the maximality of the defect sum. The second is to show that the class of meromorphic functions with maximal defect sum is very thin in the sense that deformations of meromorphic functions with maximal defect sum by small meromorphic functions are not meromorphic functions with maximal defect sum.
On minimal models of elliptic threefolds.
On Moduli of Algebraic Varieties. I.
On moduli of algebraic varieties II
On moduli of regular surfaces with and .
On moduli spaces of semistable sheaves on Enriques surfaces
We describe some one-dimensional moduli spaces of rank 2 Gieseker semistable sheaves on an Enriques surface improving earlier results of H. Kim. In the case of a nodal Enriques surface the moduli spaces obtained are reducible for general polarizations. For unnodal Enriques surfaces we show how to reduce the study of moduli spaces of high even rank Gieseker semistable sheaves to low ranks. To prove this we use the method of K. Yoshioka who showed that in the odd rank case, one can reduce to rank...
On negative weight derivations of the moduli algebras of weighted homogeneous hypersurface singularities.
On nonary cubic forms: II.
On numerically effective log canonical divisors.
On One-Parameter Family of Affine Planes.
On Open Algebraic Surfaces IP2 ? C.
On orbits of the automorphism group on an affine toric variety
Let X be an affine toric variety. The total coordinates on X provide a canonical presentation of X as a quotient of a vector space by a linear action of a quasitorus. We prove that the orbits of the connected component of the automorphism group Aut(X) on X coincide with the Luna strata defined by the canonical quotient presentation.
On Pencils of Curves and Deformations of Minimally Elliptic Singularities .