Equations de Fokker-Planck géométriques II : estimations hypoelliptiques maximales

Abstract

We study some analytic properties of the hypoelliptic Laplacian of Jean-Michel Bismut, and more generally, of geometric Fokker-Planck operators P acting on the cotangent bundle Σ=T * X of a compact Riemannian manifold X. In particular, we prove a maximal hypoelliptic estimate for P, and we get bounds on the location of the spectrum of P.