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Scaling of mathematical fractals and box-counting quasi-measure. (English) Zbl 1243.74004

Summary: The same term, ‘fractal’ incorporates two rather different meanings, and it is convenient to split the term into a physical or empirical fractal and a mathematical one. The former term is used when one considers real world or numerically simulated objects exhibiting a particular kind of scaling that is the so-called fractal behaviour, in a bounded range of scales between upper and lower cutoffs. The latter term means sets having non-integer fractal dimensions. Mathematical fractals are often used as models for physical fractal objects. Here, the scaling of mathematical fractals is considered using the Barenblatt-Borodich approach that refers physical quantities to a unit of the fractal measure of the set. To give a rigorous treatment of the fractal measure notion and to develop the approach, the concepts of upper and lower box-counting quasi-measures are presented. Scaling properties of quasi-measures are studied. As examples of possible applications of the approach, scaling properties of the problems of fractal cracking and adsorption of various substances by fractal rough surfaces are discussed.

MSC:

74A50 Structured surfaces and interfaces, coexistent phases
28A80 Fractals
Full Text: DOI

References:

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