2004/03/15 by Zbigniew Koza
Physics and Astronomy · #nlin.CD
published as Acta Physica Polonica B 35, 1365 (2004) · 10 pages, 4 eps figures, to appear in Acta Physica Polonica B (2004) at http://th-www.if.uj.edu.pl/acta/
arxiv created 2004/03/15 · arxiv updated 2009/12/01
Using a numerical library for arbitrary precision arithmetic I study the irregular dependence of the diffusion coefficient on the slope of a piecewise linear map defining a dynamical system. I find that the graph of the diffusion coefficient as a function of the slope has the fractal dimension 1, but the convergence to this limit is slowed down by logarithmic corrections. The exponent controlling this correction depends on the slope and is either 1 or 2 depending on existence and properties of a Markov partition.