Petrov-Galerkin Lucas polynomials approach for solving the time-fractional diffusion equation

Esraa Magdy Abdelghany, Waleed Mohamed Abd-Elhameed, Galal Mahrous Moatimid, Youssri Hassan Youssri, Ahmed Gamal Atta

Article ID: 3013
Vol 3, Issue 1, 2025
DOI: https://doi.org/10.54517/mss3013
Received: 21 October 2024; Accepted: 17 December 2024; Available online: 9 January 2025; Issue release: 30 June 2025

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Abstract

In this research paper, a spectral method is used for numerically solving the time-fractional diffusion equation as the time fractional diffusion equations are a powerful tool for simulating physical systems. We employ the Lucas polynomials (LPs) with Petrov-Galerkin for the linear combination basis. The main idea of the proposed technique is to convert the governed boundary-value problem into a system of linear algebraic equations by applying the Petrov-Galerkin method. Many procedures can solve the resulting linear system. The method’s accuracy is shown through several examples.


Keywords

time-fractional diffusion equation; Lucas polynomials; spectral methods


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