Numerical analysis of some partial differential equations with fractal-fractional derivative

• Published in: AIMS mathematics Vol. 8; no. 1; pp. 2240 - 2256
• Main Authors: Alharthi, Nadiyah Hussain, Atangana, Abdon, Alkahtani, Badr S.
• Format: Journal Article
• Language: English
• Published: AIMS Press 01-01-2023
• Subjects: fractal-fractional; heat equation; mittag-leffler kernel; numerical scheme; partial differential equation; power-law kernel
• ISSN: 2473-6988; 2473-6988
• DOI: 10.3934/math.2023116

In this study, we expanded the partial differential equation framework to which fractal-fractional differentiation can be applied. For this, we employed the generalized Mittag-Leffler function, and the fractal-fractional derivatives based on the power-law kernel. A general partial differential equation with the fractal-fractional derivative, the power law kernel and the generalized Mittag-Leffler function was thoroughly examined. There is almost no numerical scheme for solving partial differential equations with fractal-fractional derivatives, as less investigation has been done in this direction in the last decades. In this work, therefore, we shall attempt to provide a numerical method that might be used to solve these equations in each circumstance. The heat equation was taken into consideration for the application and numerically solved using a few simulations for various values of fractional and fractal orders. It is observed that, when the fractal order is 1, one obtains fractional partial differential equations which have been known to replicate nonlocal behaviors. Meanwhile, if the fractional order is 1, one obtains fractal-partial differential equations. Thus, when the fractional order and fractal dimension are different from zero, nonlocal processes with similar features are developed.