A Novel and Accurate Algorithm for Solving Fractional Diffusion-Wave Equations

Haifa Bin Jebreen () and Ioannis Dassios
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Haifa Bin Jebreen: Department of Mathematics, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
Ioannis Dassios: Faculty of Engineering, Aristotle University of Thessaloniki, 541 24 Thessaloniki, Greece

Mathematics, 2024, vol. 12, issue 21, 1-12

Abstract: The main objective of this work is to apply a novel and accurate algorithm for solving the second-order and fourth-order fractional diffusion-wave equations (FDWEs). First, the desired equation is reduced to the corresponding Volterra integral equation (VIE). Then, the collocation method is applied, for which the Chebyshev cardinal functions (CCFs) have been considered as the bases. In this paper, the CCFs based on a Lobatto grid are introduced and used for the first time to solve these kinds of equations. To this end, the derivative and fractional integral operators are represented in CCFs. The main features of the method are simplicity, compliance with boundary conditions, and good accuracy. An exact analysis to show the convergence of the scheme is presented, and illustrative examples confirm our investigation.

Keywords: Chebyshev cardinal functions; lobatto grid; fractional wave equation; collocation method (search for similar items in EconPapers)
JEL-codes: C (search for similar items in EconPapers)
Date: 2024
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