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Erschienen in: Calcolo 2/2016

01.06.2016

Lagrange–Hermite interpolation on the real semiaxis

verfasst von: Giuseppe Mastroianni, Incoronata Notarangelo, Pietro Pastore

Erschienen in: Calcolo | Ausgabe 2/2016

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Abstract

In order to approximate continuous functions on \([0,+\infty )\), we consider a Lagrange–Hermite polynomial, interpolating a finite section of the function at the zeros of some orthogonal polynomials and, with its first \((r-1)\) derivatives, at the point 0. We give necessary and sufficient conditions on the weights for the uniform boundedness of the related operator. Moreover, we prove optimal estimates for the error of this process in the weighted \(L^p\) and uniform metric.

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Metadaten
Titel
Lagrange–Hermite interpolation on the real semiaxis
verfasst von
Giuseppe Mastroianni
Incoronata Notarangelo
Pietro Pastore
Publikationsdatum
01.06.2016
Verlag
Springer Milan
Erschienen in
Calcolo / Ausgabe 2/2016
Print ISSN: 0008-0624
Elektronische ISSN: 1126-5434
DOI
https://doi.org/10.1007/s10092-015-0147-y

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