A criterion for a rational projectively normal variety to be almost-factorial
A propos d'une conjecture arithmétique sur le groupe de Chow d'une surface rationnelle
Additive vector fields, algebraicity and rationality.
An Example of Unirational Surfaces in Characteristic p.
Anticanonical Models of Rational Surfaces.
Apolarity and its applications.
Appendix to : “smoothings of cusp singularities via triangle singularities”
Arithmetic variation of fibers in families of curves. Part I: Hurwitz monodromy criteria for rational points on all members of the familiy.
Babylonian Tower Theorems on the Punctured Spectrum.
Bounds and definablity over fields.
Bounds for Castelnuovo's regularity and the genus of projective varieties
Bounds on Castelnuovo-Mumford regularity for divisors on rational normal scrolls.
The Castelnuovo-Mumford regularity is one of the most important invariants in studying the minimal free resolution of the defining ideals of the projective varieties. There are some bounds on the Castelnuovo-Mumford regularity of the projective variety in terms of the other basic invariants such as dimension, codimension and degree. This paper studies a bound on the regularity conjectured by Hoa, and shows this bound and extremal examples in the case of divisors on rational normal scrolls.
Caractérisations de l'espace projectif (conjectures de Hartshorne et de Frankel)
Classes de cohomologie positives dans les variétés kählériennes compactes
Étant donnée une variété kählérienne compacte , on étudie dans l’espace vectoriel réel de cohomologie de Dolbeault le cône convexe des classes de Kähler ainsi que celui, plus grand, des classes de courants positifs fermés de type . Lorsque est projective, les traces de ces cônes sur l’espace de Néron–Severi engendré par les classes entières sont respectivement le cône des classes de diviseurs amples et l’adhérence de celui des classes de diviseurs effectifs.
Classification of Buchsbaum subvarieties of codimension 2 in projective space.
Cohomologie de Galois et cohomologie des variétés algébriques réelles ; applications aux surfaces rationnelles
Cohomology of desingularization of moduli space of vector bundles
Cohomology of local systems on the complement of hyperplanes.
Cohomology of local systems on the complement of hyperplanes (Erratum).
Compactifications of C2 x C*.