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          ‐Appell sequences and related interpolation problem

Δ h ‐Appell sequences and related interpolation problem

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Article ID: iaor20132872
Volume: 63
Issue: 1
Start Page Number: 165
End Page Number: 186
Publication Date: May 2013
Journal: Numerical Algorithms
Authors: ,
Keywords: interpolation, linear algebra
Abstract:

A determinantal form for Δ h ‐Appell sequences is proposed and general properties are obtained by using elementary linear algebra tools. As particular cases of Δ h ‐Appell sequences the sequence of Bernoulli polynomials of second kind and the one of Boole polynomials are considered. A general linear interpolation problem, which generalizes the classical interpolation problem on equidistant points, is proposed. The solution of this problem is expressed by a basis of Δ h ‐Appell polynomials. Numerical examples which justify theoretical results on the interpolation problem are given.

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