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Fractal Derivatives, Fractional Derivatives and q-Deformed Calculus

Deppman, Airton ; Megías, Eugenio and Pasechnik, Roman LU (2023) In Entropy 25(7).
Abstract

This work presents an analysis of fractional derivatives and fractal derivatives, discussing their differences and similarities. The fractal derivative is closely connected to Haussdorff’s concepts of fractional dimension geometry. The paper distinguishes between the derivative of a function on a fractal domain and the derivative of a fractal function, where the image is a fractal space. Different continuous approximations for the fractal derivative are discussed, and it is shown that the q-calculus derivative is a continuous approximation of the fractal derivative of a fractal function. A similar version can be obtained for the derivative of a function on a fractal space. Caputo’s derivative is also proportional to a continuous... (More)

This work presents an analysis of fractional derivatives and fractal derivatives, discussing their differences and similarities. The fractal derivative is closely connected to Haussdorff’s concepts of fractional dimension geometry. The paper distinguishes between the derivative of a function on a fractal domain and the derivative of a fractal function, where the image is a fractal space. Different continuous approximations for the fractal derivative are discussed, and it is shown that the q-calculus derivative is a continuous approximation of the fractal derivative of a fractal function. A similar version can be obtained for the derivative of a function on a fractal space. Caputo’s derivative is also proportional to a continuous approximation of the fractal derivative, and the corresponding approximation of the derivative of a fractional function leads to a Caputo-like derivative. This work has implications for studies of fractional differential equations, anomalous diffusion, information and epidemic spread in fractal systems, and fractal geometry.

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author
; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
fractal derivatives, fractional derivatives, fractional differential equations, nonextensive statistics, q-calculus
in
Entropy
volume
25
issue
7
article number
1008
publisher
MDPI AG
external identifiers
  • scopus:85173704979
  • pmid:37509954
ISSN
1099-4300
DOI
10.3390/e25071008
language
English
LU publication?
yes
additional info
Publisher Copyright: © 2023 by the authors.
id
f8b4dca9-7ab5-4982-a9b8-fbfda4402a3a
date added to LUP
2023-11-10 14:00:43
date last changed
2025-07-03 11:36:29
@article{f8b4dca9-7ab5-4982-a9b8-fbfda4402a3a,
  abstract     = {{<p>This work presents an analysis of fractional derivatives and fractal derivatives, discussing their differences and similarities. The fractal derivative is closely connected to Haussdorff’s concepts of fractional dimension geometry. The paper distinguishes between the derivative of a function on a fractal domain and the derivative of a fractal function, where the image is a fractal space. Different continuous approximations for the fractal derivative are discussed, and it is shown that the q-calculus derivative is a continuous approximation of the fractal derivative of a fractal function. A similar version can be obtained for the derivative of a function on a fractal space. Caputo’s derivative is also proportional to a continuous approximation of the fractal derivative, and the corresponding approximation of the derivative of a fractional function leads to a Caputo-like derivative. This work has implications for studies of fractional differential equations, anomalous diffusion, information and epidemic spread in fractal systems, and fractal geometry.</p>}},
  author       = {{Deppman, Airton and Megías, Eugenio and Pasechnik, Roman}},
  issn         = {{1099-4300}},
  keywords     = {{fractal derivatives; fractional derivatives; fractional differential equations; nonextensive statistics; q-calculus}},
  language     = {{eng}},
  number       = {{7}},
  publisher    = {{MDPI AG}},
  series       = {{Entropy}},
  title        = {{Fractal Derivatives, Fractional Derivatives and q-Deformed Calculus}},
  url          = {{http://dx.doi.org/10.3390/e25071008}},
  doi          = {{10.3390/e25071008}},
  volume       = {{25}},
  year         = {{2023}},
}