SOME RESULTS ON BOX DIMENSION ESTIMATION OF FRACTAL CONTINUOUS FUNCTIONS

Huai Yang, Lulu Ren and Qian Zheng
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Huai Yang: Research Center of Nonlinear Science, School of Mathematical and Physical Sciences, Wuhan Textile University, Wuhan 430200, P. R. China
Lulu Ren: Research Center of Nonlinear Science, School of Mathematical and Physical Sciences, Wuhan Textile University, Wuhan 430200, P. R. China
Qian Zheng: Research Center of Nonlinear Science, School of Mathematical and Physical Sciences, Wuhan Textile University, Wuhan 430200, P. R. China

FRACTALS (fractals), 2024, vol. 32, issue 03, 1-8

Abstract: In this paper, we explore upper box dimension of continuous functions on [0, 1] and their Riemann–Liouville fractional integral. Firstly, by comparing function limits, we prove that the upper box dimension of the Riemann–Liouville fractional order integral image of a continuous function will not exceed 2 − υ, the result similar to [Y. S. Liang and W. Y. Su, Fractal dimensions of fractional integral of continuous functions, Acta Math. Appl. Sin. E 32 (2016) 1494–1508]. Secondly, we prove that upper box dimension of multiple algebraic sums of continuous functions does not exceed the largest box dimension among them, backing up our conclusion with an appropriate example. Finally, we draw the same conclusions for the product of multiple continuous functions.

Keywords: Upper Box Dimension; Continuous Functions; Riemann–Liouville Fractional Integral (search for similar items in EconPapers)
Date: 2024
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DOI: 10.1142/S0218348X24500506

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