Parametric characterisation of a chaotic attractor using two scale Cantor measure

Details Parametric characterisation of a chaotic attractor using two scale Cantor measure Parametric characterisation of a chaotic attractor using two scale Cantor measure

2009-01-21

arxiv.org/abs/0901.3187v1

Nonlinear Sciences

Chaotic Dynamics

17 pages, 11 figures, submitted to Phys Rev E

Scientific paper

A chaotic attractor is usually characterised by its multifractal spectrum which gives a geometric measure of its complexity. Here we present a characterisation using a minimal set of independant parameters which are uniquely determined by the underlying process that generates the attractor. The method maps the f(alpha) spectrum of a chaotic attractor onto that of a general two scale Cantor measure. We show that the mapping can be done for a large number of chaotic systems. In order to implement this procedure, we also propose a generalisation of the standard equations for two scale Cantor set in one dimension to that in higher dimensions. Another interesting result we have obtained both theoretically and numerically is that, the f(alpha) characterisation gives information only upto two scales, even when the underlying process generating the multifractal involves more than two scales.

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