Sparse Spectral-Galerkin Method on An Arbitrary Tetrahedron Using Generalized Koornwinder Polynomials
Sparse Spectral-Galerkin Method on An Arbitrary Tetrahedron Using Generalized Koornwinder Polynomials
复制标题
使用广义 Koornwinder 多项式的任意四面体稀疏谱伽辽金方法
DOI:
10.1007/s10915-022-01778-y
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发表时间:
2021-05
影响因子:
2.5
通讯作者:
Zhimin Zhang
中科院分区:
文献类型:
--
作者:
Lueling Jia;Huiyuan Li;Zhimin Zhang
In this paper, we propose a sparse spectral-Galerkin approximation scheme for solving the second-order partial differential equations on an arbitrary tetrahedron. Generalized Koornwinder polynomials are introduced on the reference tetrahedron as basis functions with their various recurrence relations and differentiation properties being explored. The method leads to well-conditioned and sparse linear systems whose entries can either be calculated directly by the orthogonality of the generalized Koornwinder polynomials for differential equations with constant coefficients or be evaluated efficiently via our recurrence algorithm for problems with variable coefficients. Clenshaw algorithms for the evaluation of any polynomial in an expansion of the generalized Koornwinder basis are also designed to boost the efficiency of the method. Finally, numerical experiments are carried out to illustrate the effectiveness of the proposed Koornwinder spectral method.
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DOI:
10.1137/s003614450238720
发表时间:
2003
期刊:
SIAM Rev.
影响因子:
--
作者:
B. McCartin
通讯作者:
B. McCartin
DOI:
10.1016/b978-0-12-817208-7.00006-6
发表时间:
2020
期刊:
General Fractional Derivatives with Applications in Viscoelasticity
影响因子:
--
作者:
Xiao-jun Yang;F. Gao;Yang Ju
通讯作者:
Xiao-jun Yang;F. Gao;Yang Ju
DOI:
10.1515/crll.1913.143.177
发表时间:
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期刊:
Journal für die reine und angewandte Mathematik (Crelles Journal)
影响因子:
--
作者:
H. Weyl
通讯作者:
H. Weyl
DOI:
--
发表时间:
2016
期刊:
--
影响因子:
--
作者:
J. Eichel
通讯作者:
J. Eichel
影响因子:
2.1
作者:
S. Beuchler;J. Schöberl
通讯作者:
S. Beuchler;J. Schöberl