Invariants de Hasse \mu -ordinaires
Invariants de Hasse \mu -ordinaires
In this article, we construct in a purely local way partial (Hasse) invariants for p-divisible groups with given endomorphisms, using crystalline cohomology. These invariants generalises the classical Hasse invariant, and allow us to study families of such groups. We also study a few geometric properties of these invariants. Used in …