Tetrahedral $C^m$ Interpolation by Rational Functions

Tetrahedral $C^m$ Interpolation by Rational Functions

Year:    2001

Author:    Guo-Liang Xu, Chuan I Chu, Wei-Min Xue

Journal of Computational Mathematics, Vol. 19 (2001), Iss. 2 : pp. 131–138

Abstract

A general local $C^m (m \ge 0)$ 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 $C^{2m}$ data at vertices and $C^m$ data on faces are given or $k+E[k/3]+1$ order algebraic precision if $C^k (k \le 2m)$ data are given at vertices. The resulted interpolant and its partial derivatives of up to order $m$ are polynomials on the boundaries of the tetrahedra.

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Journal Article Details

Publisher Name:    Global Science Press

Language:    English

DOI:    https://doi.org/2001-JCM-8964

Journal of Computational Mathematics, Vol. 19 (2001), Iss. 2 : pp. 131–138

Published online:    2001-01

AMS Subject Headings:   

Copyright:    COPYRIGHT: © Global Science Press

Pages:    8

Keywords:    $C^m$ interpolation Rational functions Tetrahedra.

Author Details

Guo-Liang Xu

Chuan I Chu

Wei-Min Xue