Symmetry Reductions and Exact Solutions for Caputo-Type Fractional Differential Equations and Nonlinear Fractional Wave-Diffusion Systems

Authors

  • Fariba Bahrami Department of Applied Mathematics, University of Tabriz
  • Ramin Najafi Maku Branch, Islamic Azad University
  • Parisa Vafadar University of Tabriz

DOI:

https://doi.org/10.30495/jme.v19i0.3248

Keywords:

Fractional wave-diffusion equation, Lie symmetry method, Fractional derivative of Caputo type, Exact solutions

Abstract

This study explores a class of (2+1)-dimensional nonlinear fractional wave-diffusion equations of the Caputo type by examining their associated Lie symmetry groups. We first derive an explicit formula for the prolonged group action on the fractional order Caputo-type derivatives with a general $\alpha$-th order. This work builds upon previous research by Gazizov et al. \cite{Gazizov} involving the Riemann-Liouville  fractional derivative. Utilizing the optimal system method, we determine the symmetries of the studied class of nonlinear fractional wave-diffusion equations and present corresponding reductions. Furthermore, we obtain a set of exact invariant and solitary solutions for the fractional Burger's equation. Our findings highlight the effectiveness of Lie symmetry methods in analyzing nonlinear fractional wave-diffusion equations, providing valuable insights into the mathematical structure underlying these equations. The invariances discovered may find potential applications across various disciplines, including physics and engineering.

Additional Files

Published

2025-05-29

Issue

Vol. 19

Section

Vol. 19, No. 3, (2025)

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