Courbes passant par points généraux de
Deformation of determinantal schemes
Deformation of Hilbert schemes of points on a surface
Deformations of Arithmetically Cohen-Macaulay subvarieties of pn.
Degree Bounds for the Defining Equations of Arithmetically Cohen-Macauly Varieties.
Der Führer einer Gorensteinvarietät.
Die Picard-Zahlen der Singularitäten ... = 0
Divisors on Varieties of Complexes.
Einige einfach-zusammenhängende Hilbertschemata.
Equations de variétés de Kummer.
Equations defining reducible Kummer surfaces in ℙ⁵
Principally polarized abelian surfaces are the Jacobians of smooth genus 2 curves or of stable genus 2 curves of special type. In [S] we studied equations describing Kummer surfaces in the case of an irreducible principal polarization on the abelian surface. The aim of this note is to give a treatment of the second case. We describe intermediate Kummer surfaces coming from abelian surfaces carrying a product principal polarization. In Proposition 12 we give explicit equations of these surfaces in...
Espaces projectifs anisotropes
Espaces projectifs anisotropes
Factorialite de l΄algebre affine de certaines formes quadratiques
Families of reduced zero-dimensional schemes.
A great deal of recent activity has centered on the question of whether, for a given Hilbert function, there can fail to be a unique minimum set of graded Betti numbers, and this is closely related to the question of whether the associated Hilbert scheme is irreducible or not. We give a broad class of Hilbert functions for which we show that there is no minimum, and hence that the associated Hilbert sheme is reducible. Furthermore, we show that the Weak Lefschetz Property holds for the general element...
Frobenius et cohomologie locale
Generische determinantielle Singularitäten: Homologische Eigenschaften des Derivationenmoduls.
Glicci versus Glicog.
Gluing Cohen-Macaulay modules with applications to quasihomogeneous complete intersections with isolated singularities.
Gorenstein points in .