Discussion de l'intersection de deux surfaces du second ordre
Divided powers and Hochschild homology of complete intersections. (With an Appendix by Reinhold Hübl: The cyclic homology of hypersurfaces with isolated singularities).
Divisor class groups of some 3-dimensional singularities
Divisors of Bielliptic Surfaces and Ebeddings in IP4.
Divisors on hypersurfaces.
Dominating the varieties of general type.
Double coverings of rational surface.
Double covers and Calabi-Yau varieties
Double covers and vector bundles.
Double fibres and double covers: paucity of rational points
Double integrals on a weighted projective plane and Hilbert modular functions for ℚ (√5)
The aim of this paper is to give an explicit extension of classical elliptic integrals to the Hilbert modular case for ℚ (√5). We study a family of Kummer surfaces corresponding to the Humbert surface of invariant 5 with two complex parameters. Our Kummer surface is given by a double covering of the weighted projective space ℙ(1:1:2) branched along a parabola and a quintic curve. The period mapping for our family is given by double integrals of an algebraic function on chambers coming from an arrangement...
Duality and integrability on contact Fano manifolds.
Duality in the flat cohomology of a surface
Durchmesser und Mittelpunkte algebraischer Hyperflächen.
Dynamics on blowups of the projective plane
E8 und die binäre Ikosaedergruppe.
Effective base point freeness.
Effective bounds for semipositive sheaves and for the height of points on curves over complex function fields
Effective nonvanishing, effective global generation
We prove a multiple-points higher-jets nonvanishing theorem by the use of local Seshadri constants. Applications are given to effectivity problems such as constructing rational and birational maps into Grassmannians, and the global generation of vector bundles.
Ein neuer Zusammenhang zwischen einfachen Gruppen und einfachen Singularitäten.