Rapid Decay of Correlations for Nonuniformly Hyperbolic Flows

Trans. Amer. Math. Soc. 359 (2007) 2421-2441.

Ian Melbourne


Abstract

We show that superpolynomial decay of correlations (rapid mixing) is prevalent for a class of nonuniformly hyperbolic flows. These flows are the continuous time analogue of the class of nonuniformly hyperbolic maps for which Young proved exponential decay of correlations. The proof combines techniques of Dolgopyat and renewal theory.

It follows from our results that planar periodic Lorentz flows with finite horizons and flows near homoclinic tangencies are typically rapid mixing.


pdf file

Typos, etc: None known. Extra details/updates given in the review article Melbourne 2018 for semiflows and the article Balint, Butterley & Melbourne 2019 for flows.