Poisson suspensions and infinite ergodic theory

Emmanuel Roy (1)

1 LAGA - Laboratoire Analyse, Géométrie et Applications

We investigate ergodic theory of Poisson suspensions. In the process, we establish close connections between finite and infinite measure preserving ergodic theory. Poisson suspensions thus provide a new approach to infinite measure preserving ergodic theory. Fields investigated here are mixing properties, spectral theory, joinings. We also compare Poisson suspensions to the apparently similar looking Gaussian dynamical systems.

Keywords: Poisson suspensions; infinite ergodic theory; joinings

Domains: Dynamical Systems [math.DS]

Emmanuel Roy. Poisson suspensions and infinite ergodic theory. Ergodic Theory and Dynamical Systems, 2009, 29 (2), pp.667-683. ⟨10.1017/S0143385708080279⟩. ⟨hal-00206279v2⟩