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A nonlinear algorithm for monotone piecewise bicubic interpolation

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  • Aràndiga, F.

Abstract

In this paper we present an algorithm for monotone interpolation of monotone data on a rectangular mesh by piecewise bicubic functions. Carlton and Fritsch (1985) develop conditions on the Hermite derivatives that are sufficient for such a function to be monotone. Here we extend our results of Aràndiga (2013) to obtain nonlinear approximations to the first partial and first mixed partial derivatives at the mesh points that allow us to construct a monotone piecewise bicubic interpolants. We analyze its order of approximation and present some numerical experiments.

Suggested Citation

  • Aràndiga, F., 2016. "A nonlinear algorithm for monotone piecewise bicubic interpolation," Applied Mathematics and Computation, Elsevier, vol. 272(P1), pages 100-113.
    • Handle: RePEc:eee:apmaco:v:272:y:2016:i:p1:p:100-113
    DOI: 10.1016/j.amc.2015.08.027
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