Nonlinear Sciences – Chaotic Dynamics
Scientific paper
2004-05-04
J. Phys. A: Math. Gen. 37, 10859-10877 (2004)
Nonlinear Sciences
Chaotic Dynamics
17 pages, 6 figures; ver.2: 18 pages, 7 figures (added section 5.2, corrected typos, etc.)
Scientific paper
10.1088/0305-4470/37/45/009
In many low-dimensional dynamical systems transport coefficients are very irregular, perhaps even fractal functions of control parameters. To analyse this phenomenon we study a dynamical system defined by a piece-wise linear map and investigate the dependence of transport coefficients on the slope of the map. We present analytical arguments, supported by numerical calculations, showing that both the Minkowski-Bouligand and Hausdorff fractal dimension of the graphs of these functions is 1 with a logarithmic correction, and find that the exponent $\gamma$ controlling this correction is bounded from above by 1 or 2, depending on some detailed properties of the system. Using numerical techniques we show local self-similarity of the graphs. The local self-similarity scaling transformations turn out to depend (irregularly) on the values of the system control parameters.
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