Nonnegativity Preserving Interpolation by C1 Bivariate Rational Spline Surface

This paper is concerned with the nonnegativity preserving interpolation of data on rectangular grids. The function is a kind of bivariate rational interpolation spline with parameters, which is C1 in the whole interpolation region. Sufficient conditions are derived on coefficients in the rational sp...

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Bibliographic Details
Main Authors: Xingxuan Peng, Zhihong Li, Qian Sun
Format: Article
Language:English
Published: Hindawi Limited 2012-01-01
Series:Journal of Applied Mathematics
Online Access:http://dx.doi.org/10.1155/2012/624978