4.5 Article

Dynamical Taxonomy: Some Taxonomic Ranks to Systematically Classify Every Chaotic Attractor

出版社

WORLD SCIENTIFIC PUBL CO PTE LTD
DOI: 10.1142/S021812742230004X

关键词

Chaos; toroidal chaos; hyperchaos; map; topology

资金

  1. Russian Foundation for Basic Research [19-31-60030]

向作者/读者索取更多资源

Accurately characterizing chaotic behaviors is a complex problem that requires classification and labeling to determine the shared properties and differences between chaotic behaviors. Starting from the Lyapunov exponent spectrum, we extended the description of chaotic behaviors, proposed higher-level classification methods, and expanded the description to multi-component attractors using a linker.
Characterizing accurately chaotic behaviors is not a trivial problem and must allow to determine the properties that two given chaotic invariant sets share or not. The underlying problem is the classification of chaotic regimes, and their labeling. Addressing these problems corresponds to the development of a dynamical taxonomy, exhibiting the key properties discriminating the variety of chaotic behaviors discussed in the abundant literature. Starting from the hierarchy of chaos initially proposed by one of us, we systematized the description of chaotic regimes observed in three- and four-dimensional spaces, which cover a large variety of known (and less known) examples of chaos. Starting with the spectrum of Lyapunov exponents as the first taxonomic ranks, we extended the description to higher ranks with some concepts inherited from topology (bounding torus, surface of section, first-return map, horizontal ellipsis). By treating extensively the Rossler and the Lorenz attractors, we extended the description of branched manifold - the highest known taxonomic rank for classifying chaotic attractor - by a linking matrix (or linker) to multicomponent attractors (bounded by a torus whose genus g >= 3).

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