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Quantitative hyperbolicity estimates in one-dimensional dynamics

S Day1, H Kokubu2, S Luzzatto3, K Mischaikow4, H Oka5 and P Pilarczyk6

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Recommended by Y G Kevrekidis

We develop a rigorous computational method for estimating the Lyapunov exponents in uniformly expanding regions of the phase space for one-dimensional maps. Our method uses rigorous numerics and graph algorithms to provide results that are mathematically meaningful and can be achieved in an efficient way.


PACS

05.45.-a Nonlinear dynamics and nonlinear dynamical systems

02.10.Ox Combinatorics; graph theory

MSC

37L45 Hyperbolicity; Lyapunov functions

37D25 Nonuniformly hyperbolic systems (Lyapunov exponents, Pesin theory, etc.)

37E25 Maps of trees and graphs

Subjects

Mathematical physics

Statistical physics and nonlinear systems

Dates

Issue 9 (September 2008)

Received 29 November 2007, in final form 16 June 2008

Published 11 July 2008



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