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An efficient algorithm for periodic Hermite spline interpolation with shifted nodes

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Abstract

Generalized Hermite spline interpolation with periodic splines of defect 2 on an equidistant lattice is considered. Then the classic periodic Hermite spline interpolation with shifted interpolation nodes is obtained as a special case.

By means of a new generalization of Euler-Frobenius polynomials the symbol of the considered interpolation problem is defined. Using this symbol, a simple representation of the fundamental splines can be given. Furthermore, an efficient algorithm for the computation of the Hermite spline interpolant is obtained, which is mainly based on the fast Fourier transform.

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Authors and Affiliations

  1. Fachbereich Mathematik, UniversitÄt Rostock, D-18051, Rostock, Germany

    Gerlind Plonka

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  1. Gerlind Plonka
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Plonka, G. An efficient algorithm for periodic Hermite spline interpolation with shifted nodes. Numer Algor 5, 51–62 (1993). https://doi.org/10.1007/BF02109283

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  • DOI: https://doi.org/10.1007/BF02109283

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