2024 : 11 : 22

Mohammad Shahriari

Academic rank: Associate Professor
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Education: PhD.
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Faculty: 1
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Research

Title
An efficient algorithm for computing the eigenvalues of conformable Sturm-Liouville problem
Type
JournalPaper
Keywords
Sturm-Liouville problem, Conformable derivative, Finite elements method, Correction idea.
Year
2024
Journal Computational Methods for Differential Equations
DOI
Researchers Hanif Mirzaei ، Mahmood Emami ، Kazem Ghanbari ، Mohammad Shahriari

Abstract

In this paper, Computing the eigenvalues of the Conformable Sturm-Liouville Problem (CSLP) of order \alpha and dirichlet boundary conditions is considered. For this aim, CSLP is discretized to obtain a matrix eigenvalue problem (MEP) using finite element method with fractional shape functions. Then by a method based on the asymptotic form of the eigenvalues, we correct the eigenvalues of MEP to obtain effecient approximations for the eigenvalues of CSLP. Finally, some numerical examples to show the efficiency of the proposed method are given. Numerical results show that for the nth eigenvalue, the correction technique reduces the error order from O(n^4h^2) to O(n^2h^2).