A Characterization of Five-Dimensional Jacobian Varieties.
A characterization of non-hyperelliptic Jacobi varieties.
A dimension formula for Ekedahl-Oort strata
We study the Ekedahl-Oort stratification on moduli spaces of PEL type. The strata are indexed by the classes in a Weyl group modulo a subgroup, and each class has a distinguished representative of minimal length. The main result of this paper is that the dimension of a stratum equals the length of the corresponding Weyl group element. We also discuss some explicit examples.
A general embedding theorem in formal geometry
Abelian surfaces of type (1, 4).
Abelian varieties, ...-adic representations, and ...-independence.
Abelian Varieties Attached to Polarized K3-Surfaces.
Abelian varieties over finite fields with a specified characteristic polynomial modulo
We estimate the fraction of isogeny classes of abelian varieties over a finite field which have a given characteristic polynomial modulo . As an application we find the proportion of isogeny classes of abelian varieties with a rational point of order .
Abelian varieties, surfaces of general type and integrable systems.
Alcôves et -rang des variétés abéliennes
On étudie la relation entre le -rang des variétés abéliennes en caractéristique et la stratification de Kottwitz-Rapoport de la fibre spéciale en de l’espace de module des variétés abéliennes principalement polarisées avec structure de niveau de type Iwahori en . En particulier, on démontre la densité du lieu ordinaire dans cette fibre spéciale.
Andreotti-Mayer loci and the Schottky problem.
Arithmetic models for Hilbert modular varieties