Mathematics (Sep 2022)

The Discrete Fractional Variable-Order Tinkerbell Map: Chaos, 0–1 Test, and Entropy

  • Souad Bensid Ahmed,
  • Adel Ouannas,
  • Mohammed Al Horani,
  • Giuseppe Grassi

DOI
https://doi.org/10.3390/math10173173
Journal volume & issue
Vol. 10, no. 17
p. 3173

Abstract

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The dynamics of the Caputo-fractional variable-order difference form of the Tinkerbell map are studied. The phase portraits, bifurcation, and largest Lyapunov exponent (LLE) were employed to demonstrate the presence of chaos over a different fractional variable-order and establish the nature of the dynamics. In addition, the 0–1 test tool was used to detect chaos. Finally, the numerical results were confirmed using the approximate entropy.

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