Fractal basin boundaries generated by basin cells and the geometry of mixing chaotic flows |
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Authors: | Nusse Yorke |
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Institution: | Institute for Physical Science and Technology, University of Maryland, College Park, Maryland 20742, USA. |
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Abstract: | Experiments and computations indicate that mixing in chaotic flows generates certain coherent spatial structures. If a two-dimensional basin has a basin cell (a trapping region whose boundary consists of pieces of the stable and unstable manifold of some periodic orbit) then the basin consists of a central body (the basin cell) and a finite number of channels attached to it and the basin boundary is fractal. We demonstrate an amazing property for certain global structures: A basin has a basin cell if and only if every diverging curve comes close to every basin boundary point of that basin. |
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