On the iteration of the adjunction process for surfaces of negative Kodaira dimension.
On the Kodaira Dimension of the Moduli Space of Curves.
On the Kodaira dimension of the moduli space of curves, II. The even-genus case.
On the k-regularity of some proyective manifolds.
The conjecture on the (degree-codimension + 1) - regularity of projective varieties is proved for smooth linearly normal polarized varieties (X,L) with L very ample, for low values of Delta(X,L) = degree-codimension-1. Results concerning the projective normality of some classes of special varieties including scrolls over curves of genus 2 and quadric fibrations over elliptic curves, are proved.
On the Lattice of Transcendental Cycles on an Elliptic Surface.
On the Lüroth Semigroup of curves lying on a smooth quadric.
On the minimality of hyperplane sections of projective threefolds.
On the mixed Hodge structure associated to of a simply connected complex projective manifold
On the Mixed Hodge Structure on the Cohomology of the Milnor Fibre.
On the motive of an algebraic surface.
On the -conjecture
On the Néron-Severi group of a singular variety.
On the nonemptiness of the adjoint linear system of a hyperplane section of a threefold.
On the nonemptiness of the adjoint linear system of a hyperplane section of a threefold.
On the non-triviality of the Griffith group.
On the Normal Bundles of Rational Space Curves.
On the number of compatibly Frobenius split subvarieties, prime -ideals, and log canonical centers
Let be a projective Frobenius split variety with a fixed Frobenius splitting . In this paper we give a sharp uniform bound on the number of subvarieties of which are compatibly Frobenius split with . Similarly, we give a bound on the number of prime -ideals of an -finite -pure local ring. Finally, we also give a bound on the number of log canonical centers of a log canonical pair. This final variant extends a special case of a result of Helmke.
On the period map for abelian covers of projective varieties
On the Picard Group of Enriques Surfaces.
On the Picard number of a complex projective variety