TETRAHEDRAL C~m INTERPOLATION BY RATIONAL FUNCTIONS

被引:0
作者
Guo-liang Xu (State Key Laboratory of Scientific and Engineering Computing
机构
关键词
Cm interpolation; Rational functions; Tetrahedra;
D O I
暂无
中图分类号
O241 [数值分析];
学科分类号
070102 ;
摘要
A general local Cm(m ≥ 0) tetrahedral interpolation scheme by polynomials of degree 4m + 1 plus low order rational functions from the given data is proposed. The scheme can have either 4m + 1 order algebraic precision if C2m data at venices and Cm data on faces are given or k + E[k/.3] + 1 order algebraic precision if Ck (k ≤2m) data are given at venices. The resulted interpolant and its partial derivatives of up to order m are polynomials on the boundaries of the tetrahedra.
引用
收藏
页码:131 / 138
页数:8
相关论文
共 4 条
[1]   A Kind of Cubic C1—Interpolations in the n-dimensional Finite Element Method [J].
Ren Hong Wang and Xi Quan Shi(Jinlin University) .
数学研究与评论, 1989, (02) :173-179
[2]  
Ann-dimensional Clough-Tocher interpolant[J] . A. J. Worsey,G. Farin. Constructive Approximation . 1987 (1)
[3]  
THREE-AND FOUR-DIMENSIONAL SURFACES[J] . The Rocky Mountain Journal of Mathematics . 1984 (1)
[4]   A DISCRETE C-1 INTERPOLANT FOR TETRAHEDRAL DATA [J].
ALFELD, P .
ROCKY MOUNTAIN JOURNAL OF MATHEMATICS, 1984, 14 (01) :5-16