Global trace formula for ultra-differentiable Anosov flows

Abstract

Adapting tools that we introduced in [19] to study Anosov flows, we prove that the trace formula conjectured by Dyatlov and Zworski in [12] holds for Anosov flows in a certain class of regularity (smaller than ${\mathcal{C}}^{\infty }$ but larger than the class of Gevrey functions). The main ingredient of the proof is the construction of a family of anisotropic Hilbert spaces of generalized distributions on which the generator of the flow has discrete spectrum.

v3: Electronic copy of final peer-reviewed manuscript accepted for publication