Jacobi approximations in non-uniformly Jacobi-weighted Sobolev spaces

Jacobi approximations in non-uniformly Jacobi-weighted Sobolev spaces
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DOI:
10.1016/j.jat.2004.03.008
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发表时间:
2004-05
期刊:
J. Approx. Theory
影响因子:
--
通讯作者:
B. Guo;Lilian Wang
B. Guo;Lilian Wang
中科院分区:
其他
文献类型:
--
作者:
B. Guo;Lilian Wang

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研究了非一致Jacobi加权Sobolev空间中的Jacobi近似。建立了正交投影和插值的一些结果。给出了近似结果与雅可比多项式参数关系的显式表达式。这些结果在分析大量的求积方程和微分、积分方程的数值方法中是一个重要的工具。
Jacobi approximations in non-uniformly Jacobi-weighted Sobolev spaces are investigated. Some results on orthogonal projections and interpolations are established. Explicit expressions describing the dependence of approximation results on the parameters of Jacobi polynomials are given. These results serve as an important tool in the analysis of numerous quadratures and numerical methods for differential and integral equations.