On the Normal Bundle of Curves on Complete Intersection Surfaces.
On the normal bundle of curves on smooth projective surfaces.
On the Normal Bundle to Abelian Surfaces Embedded in ...4 ( C ) .
On the Normal Bundles of Rational Space Curves.
On the Normal Bundles of Smooth Rational Spaces Curves.
On the number of non-equivalent differentiable structures on 4-Manifolds.
On the order three Brauer classes for cubic surfaces
We describe a method to compute the Brauer-Manin obstruction for smooth cubic surfaces over ℚ such that Br(S)/Br(ℚ) is a 3-group. Our approach is to associate a Brauer class with every ordered triplet of Galois invariant pairs of Steiner trihedra. We show that all order three Brauer classes may be obtained in this way. To show the effect of the obstruction, we give explicit examples.
On the adic nearby cycles of log smooth families
On the Picard number of a complex projective variety
On the Picard-Fuchs Equation and the Formal Brauer Group of Certain Elliptic K3-Surfaces.
On the preservation of k-very ampleness under adjunction.
On the projective normality of complete linear series on an algebraic curve.
On the Ramification of Branched Coverings of IPn.
On the reducibility of moduli spaces of stable 2-bundles over an elliptic surface.
On the relative adjunction mapping.
On the representations of the fundamental group
On the semi-simplicity of Galois actions
On the S-fundamental group scheme
We introduce a new fundamental group scheme for varieties defined over an algebraically closed (or just perfect) field of positive characteristic and we use it to study generalization of C. Simpson’s results to positive characteristic. We also study the properties of this group and we prove Lefschetz type theorems.
On the Shafarevich and Tate conjectures for hyperkähler varieties.
On the Spannedness and Very Ampleness of Certain Line Bundles on the Blow-ups of IP2C and Fr .