A Conforming Virtual Element Method for Parabolic Integro-Differential Equations

IF 1 4区 数学 Q3 MATHEMATICS, APPLIED Computational Methods in Applied Mathematics Pub Date : 2023-10-11 DOI:10.1515/cmam-2023-0061
Sangita Yadav, Meghana Suthar, Sarvesh Kumar
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Abstract

Abstract This article develops and analyses a conforming virtual element scheme for the spatial discretization of parabolic integro-differential equations combined with backward Euler’s scheme for temporal discretization. With the help of Ritz–Voltera and L 2 L^{2} projection operators, optimal a priori error estimates are established. Moreover, several numerical experiments are presented to confirm the computational efficiency of the proposed scheme and validate the theoretical findings.
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抛物型积分-微分方程的一致虚元法
摘要结合时间离散的后向欧拉格式,提出并分析了抛物型积分微分方程空间离散化的符合虚元格式。利用Ritz-Voltera算子和l2l ^{2}投影算子,建立了最优先验误差估计。最后,通过数值实验验证了该方法的计算效率和理论结果。
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来源期刊
CiteScore
2.40
自引率
7.70%
发文量
54
期刊介绍: The highly selective international mathematical journal Computational Methods in Applied Mathematics (CMAM) considers original mathematical contributions to computational methods and numerical analysis with applications mainly related to PDEs. CMAM seeks to be interdisciplinary while retaining the common thread of numerical analysis, it is intended to be readily readable and meant for a wide circle of researchers in applied mathematics. The journal is published by De Gruyter on behalf of the Institute of Mathematics of the National Academy of Science of Belarus.
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