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ЖУРНАЛЫ // Журнал вычислительной математики и математической физики // Архив

Ж. вычисл. матем. и матем. физ., 2025, том 65, номер 7, страницы 1548–1565 (Mi zvmmf12026)

Статьи, опубликованные в английской версии журнала

Application of the Finite Element Method (FEM) to a class of nonlocal elliptic and parabolic equations

A. Slimania, Y. Bedranib, T. Belhadic

a Department of Software and Information Systems Technologies, Faculty of New Information and Communication Technologies, University of Abdelhamid Mehri Constantine 2, Constantine, Algeria
b Department of Mathematics, Laboratory of Applied Mathematics and History and Didactics of Mathematics (LAMAHIS), University 20 august 1955 Skikda, 21000, Skikda, Algeria
c Department of Mathematics, Faculty of exact Sciences and Computer Science, University of Hassiba Benbouali, Chlef, Algeria

Аннотация: In this study, we explore the numerical solutions of two nonlocal fractional problems using the finite element method (FEM). Many previous studies addressing elliptic problems have considered the simple form of the second member, where $f=1$. However, in our current paper, we explore different formulas for $f$. In the case of the second parabolic problem, we utilize the matrices computed in the first problem to derive an ordinary differential equation.In order to calculate the exponential matrix in the analytical solution of the ordinary differential equation, we utilize the $(2,2)$ Pade approximation. These methods are applied to three numerical examples to demonstrate the accuracy and efficiency of the proposed technique. Our findings suggest that this approach is highly effective and efficient.

Ключевые слова: finite element method (FEM), nonlocal elliptic equations, nonlocal parabolic equations, $(2,2)$ Pade approximation.

Поступила в редакцию: 12.02.2025
Исправленный вариант: 12.03.2025
Принята в печать: 27.03.2025

Язык публикации: английский


 Англоязычная версия: Computational Mathematics and Mathematical Physics, 2025, 65:7, 1548–1565


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