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Non-differentiable functions defined in terms of classical representations of real numbers. (English) Zbl 1447.26003
Summary: The present paper is devoted to the functions from a certain subclass of non-differentiable functions. The arguments and values of the considered functions are represented by the $$s$$-adic representation or the nega-$$s$$-adic representation of real numbers. The technique of modeling these functions is the simplest as compared with the well-known techniques of modeling non-differentiable functions. In other words, the values of these functions are obtained from the $$s$$-adic or nega-$$s$$-adic representation of the argument by a certain change of digits or combinations of digits. Integral, fractal and other properties of the functions are described.

MSC:
 26A27 Nondifferentiability (nondifferentiable functions, points of nondifferentiability), discontinuous derivatives 11B34 Representation functions 11K55 Metric theory of other algorithms and expansions; measure and Hausdorff dimension 39B22 Functional equations for real functions
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