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AIMS Mathematics
Article . 2025 . Peer-reviewed
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Article . 2025
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High relative accuracy for a Newton form of bivariate interpolation problems

Authors: Khiar, Yasmina; Mainar, Esmeralda; Royo-Amondarain, Eduardo; Rubio, Beatriz;

High relative accuracy for a Newton form of bivariate interpolation problems

Abstract

The problem of bivariate polynomial interpolation using Newton-type bases is examined, leading to the application of a generalized Kronecker matrix product. Algorithms for computing the coefficients of the interpolating polynomial are presented, along with conditions that ensure relative errors of the order of machine precision. A generalization of the classical recursion formula of divided differences in two dimensions is proposed for grids that generalize the standard rectangular layout. Numerical experiments demonstrate the high accuracy achieved by the proposed approach.

Country
Spain
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Keywords

QA1-939, high relative accuracy, bidiagonal decompositions, bivariate interpolation, Mathematics, totally positive matrices

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
1
Average
Average
Average
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