Exterior dimension of fat fractals |
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Authors: | Celso Grebogi Steven W McDonald Edward Ott James A Yorke |
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Institution: | University of Maryland, College Park, MD 20742, USA |
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Abstract: | Geometric scaling properties of fat fractal sets (fractals with finite volume) are discussed and characterized via the introduction of a new dimension-like quantity which we call the exterior dimension. In addition, it is shown that the exterior dimension is related to the “uncertainty exponent” previously used in studies of fractal basin boundaries, and it is shown how this connection can be exploited to determine the exterior dimension. Three illustrative applications are described, two in nonlinear dynamics and one dealing with blood flow in the body. Possible relevance to porous materials and ballistic driven aggregation is also noted. |
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