Corinna Ulcigrai

Chaotic properties and deviations phenomena of locally Hamiltonian flows

Universität Zurich

This talk will focus on locally Hamiltonian flows on surfaces, namely smooth two-dimensional flows which are local solution of Hamiltonian differential equations. We will present a survey of results concerning the chaotic properties, in particular mixing properties, of this class of flows. We will then discuss the deviations phenomena exhibited by ergodic integrals of smooth functions. Recent results on this phenomenon and applications to ergodicity of extensions are based on joint works with K. Fraczek and with P. Berk and F. Trujillo.

Friday, November 3, 9h00