论文标题

一种有效的光谱方法,用于用非平滑溶液求解第三种Volterra积分方程

An efficient spectral method for solving third-kind Volterra integral equations with non-smooth solutions

论文作者

Talaei, Younes, Lima, Pedro M

论文摘要

本文与基于光谱tau方法的递归方法的第三类伏尔特拉积分方程的数值解有关。为此,介绍了一组新的分数版本的分数版本多项式(称为FC-多项式)。近似多项式溶液(称为tau-solution)用FC多项式表示。 Tau-soluste的分数结构即使在非平滑溶液的情况下,也可以恢复光谱方法的标准准确性。研究了该方法的收敛分析。获得的数值结果表明,与其他现有方法相比,该方法的准确性和效率。

This paper is concerned with the numerical solution of the third kind Volterra integral equations with non-smooth solutions based on the recursive approach of the spectral Tau method. To this end, a new set of the fractional version of canonical basis polynomials (called FC-polynomials) is introduced. The approximate polynomial solution (called Tau-solution) is expressed in terms of FC-polynomials. The fractional structure of Tau-solution allows recovering the standard degree of accuracy of spectral methods even in the case of non-smooth solutions. The convergence analysis of the method is studied. The obtained numerical results show the accuracy and efficiency of the method compared to other existing methods.

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