Combined Legendre Spectral-Finite Element Methods for Two-Dimensional Fredholm Integral Equations of the Second Kind

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2022-10-19 DOI:10.1080/01630563.2022.2135540

B. L. Panigrahi

引用次数: 0

Abstract

Abstract In this paper, we will discuss on the Combined Legendre spectral-Finite element methods (CLSFEM) for the two-dimensional Fredholm integral equations with smooth kernel on the Banach spaces and the corresponding eigenvalue problem. In these methods, the approximated finite dimensional space is the cartesian product of spline space and Legendre polynomial space. The problem is approximated by the CLSFEM using orthogonal projection, which projects from the Banach space into the finite dimensional space. The convergence analysis for both Fredholm integral equations and the corresponding eigenvalue problem will be discussed in both L 2 and norms. The numerical results will be shown to validate the theoretical estimate.

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二维第二类Fredholm积分方程的联合Legendre谱-有限元方法

摘要本文讨论Banach空间上具有光滑核的二维Fredholm积分方程的组合Legendre谱有限元方法及其特征值问题。在这些方法中，近似的有限维空间是样条空间和勒让德多项式空间的笛卡尔乘积。该问题由CLSFEM使用正交投影来近似，该投影从Banach空间投影到有限维空间中。将在L2和范数中讨论Fredholm积分方程和相应特征值问题的收敛性分析。数值结果将用于验证理论估计。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

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