The zeros of thetafunctions belonging to binary-hermitian forms over Z [i].
Théorème de Torelli affine pour les intersections de deux quadriques.
Theoreme de Torelli pour les cubiques de P5 .
Théorie du corps de classes de Kato et revêtements abéliens de surfaces
L’auteur présente des applications élémentaires de la théorie du corps de classes de Kato et Parshin en dimensions 1 et 3 : calcul du conducteur d’une extension de Witt-Artin-Schreier d’un corps local de dimension 1, et étude des revêtements abéliens des surfaces.
Theta constants of genus three
Theta functions and cycles on some abelian fourfolds.
Theta functions on the bounded symmetric domain of type ... and the period map of a 4-parameter family of K3 surfaces.
Theta-caracteristiques des courbes tracees sur une surface lisse.
Three-dimensional terminal toric flips
We describe three-dimensional terminal toric flips. We obtain the complete local description of three-dimensional terminal toric flips.
Threefolds and deformations of surface singularities.
Threefolds in P5 with a 3-dimensional family of plane curves.
Threefolds of degree 9 and 10 in P5.
Threefolds of non negative Kodaira dimension with sectional genus less than or equal to 15
Threefolds with big and nef anticanonical bundles II
In a follow-up to our paper [Threefolds with big and nef anticanonical bundles I, Math. Ann., 2005, 333(3), 569–631], we classify smooth complex projective threefolds Xwith −K X big and nef but not ample, Picard number γ(X) = 2, and whose anticanonical map is small. We assume also that the Mori contraction of X and of its flop X + are not both birational.
Threefolds with nef anticanonical bundles.
In this paper we study the global structure of projective threefolds X whose anticanonical bundle -KX is nef.
Tie transformations of Dynkin graphs and singularities on quartic surfaces.
Tilting Bundles on Rational Surfaces and Quasi-Hereditary Algebras
Let be any rational surface. We construct a tilting bundle on . Moreover, we can choose in such way that its endomorphism algebra is quasi-hereditary. In particular, the bounded derived category of coherent sheaves on is equivalent to the bounded derived category of finitely generated modules over a finite dimensional quasi-hereditary algebra . The construction starts with a full exceptional sequence of line bundles on and uses universal extensions. If is any smooth projective variety...
Topological Order Complexes and Resolutions of Discriminant Sets
Topological order complexes and resolutions of discriminant sets.
Topologische Typen reeller kubischer Flächen.