O jedné ploše stupně čtvrtého
O jedné třídě ploch zborcených
O jisté ploše bikvadratické, jež souvisí s theorií komplexu os rotačních ploch kuželových jdoucích třemi danými body
On 3-folds in which are scrolls
On a birational classification of bundles and reflexive sheaves on surfaces
On a certain generalization of spherical twists
This note gives a generalization of spherical twists, and describe the autoequivalences associated to certain non-spherical objects. Typically these are obtained by deforming the structure sheaves of -curves on threefolds, or deforming -objects introduced by D.Huybrechts and R.Thomas.
On a characterization of an abelian variety in the classification theory of algebraic varieties
On a conjecture of Mukai.
On a conjecture of Xiao.
On a geometric property of the normal bundle of surfaces in IP4.
On a problem of Seiberg and Witten
We describe alternate methods of solution for a model arising in the work of Seiberg and Witten on N = 2 supersymmetric Yang-Mills theory and provide a complete argument for the characterization put forth by Argyres, Faraggi, and Shapere of the curve .
On a Result of Riemenschneider.
On a spanned tautological bundle.
On a stratification of the moduli of K3 surfaces
In this paper we give a characterization of the height of K3 surfaces in characteristic . This enables us to calculate the cycle classes in families of K3 surfaces of the loci where the height is at least . The formulas for such loci can be seen as generalizations of the famous formula of Deuring for the number of supersingular elliptic curves in characteristic . In order to describe the tangent spaces to these loci we study the first cohomology of higher closed forms.
On a surface of the eighth order
On a theorem of Enriques - Swinnerton-Dyer
On abelian automorphism group of a surface of general type.
On Affine-Ruled Irrational Surfaces.
On Affine-Ruled Rational Surfaces.
On Algebraic Fibre Spaces of Abelian Varieties.