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L p error estimates for approximation by Sobolev splines and Wendland functions on ℝ d

Ward, John

In: Advances in Computational Mathematics, 2013, vol. 38, no. 4, p. 873-889

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    Titre
    • L p error estimates for approximation by Sobolev splines and Wendland functions on ℝ d
    Auteur
    • Ward, John. Biomedical Imaging Group, EPFL, 1015, Lausanne, Switzerland
    Type de document
    • Postprint
    Langue
    • Inglese
    Publié dans
    • Advances in Computational Mathematics, 2013, vol. 38, no. 4, p. 873-889. Springer US; http://www.springer-ny.com
    Autre version électronique
    Identifiant OAI-PMH
    • oai:doc.rero.ch:312394
    Summary
    It is known that a Green's function-type condition may be used to derive rates for approximation by radial basis functions (RBFs). In this paper, we introduce a method for obtaining rates for approximation by functions which can be convolved with a finite Borel measure to form a Green's function. Following a description of the method, rates will be found for two classes of RBFs. Specifically, rates will be found for the Sobolev splines, which are Green's functions, and the perturbation technique will then be employed to determine rates for approximation by Wendland functions