Moduli reflexiver Garben und Flächen von kleinem Grad in IP4.
Moduli spaces of polarized irreducible symplectic manifolds are not necessarily connected
We show that the moduli space of polarized irreducible symplectic manifolds of -type, of fixed polarization type, is not always connected. This can be derived as a consequence of Eyal Markman’s characterization of polarized parallel-transport operators of -type.
Modulprobleme in der algebraischen Geometrie I
Modulräume stabiler 2-Bündel auf Regelflächen.
Motivic measures
Natural -constellation families.
Nets of Quadrics and Vector Bundles on a Double Plane.
Nodal Cubic Surfaces and the Rationality of the Moduli Space of Curves of Genus Two.
Noether-Lefschetz, space curves and mathematical instantons.
Nondegenerate surfaces of degree n+3 in PnC.
Non-hyperelliptic fibrations of small genus and certain irregular canonical surfaces
Non-smoothable varieties.
Normal projective degenerations of rational and ruled surfaces.
Normal projective surfaces with
Note sur les surfaces du quatrième ordre
Note sur les surfaces du quatrième ordre
On a characterization of an abelian variety in the classification theory of algebraic varieties
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 Affine-Ruled Irrational Surfaces.
On Affine-Ruled Rational Surfaces.