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Speed of convergence to equilibrium for systems with contracting fibers and the logarithm law for Lorenz like flows.

Presented by: 
S Galatolo Università di Pisa
Date: 
Thursday 14th November 2013 - 11:00 to 12:00
Venue: 
INI Seminar Room 1
Abstract: 
A system satisfy a logarithm law if the time which is needed to hit a small target scales as the inverse of the measure of the target. This kind of laws, related to the occurrence of a rare event are also related to the arithmetical properties and to the speed of mixing of the system. I will present a short introduction to the subject and show how a general statement about the speed of convergence to equilibrium for systems with contracting fibers can be applied to deduce the logarithm law for a class of singular hyperbolic flows.
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Presentation Material: 
University of Cambridge Research Councils UK
    Clay Mathematics Institute The Leverhulme Trust London Mathematical Society Microsoft Research NM Rothschild and Sons