Hyperinterpolation for spectral wave propagation models in three dimensions

Mahadevan Ganesh, Stuart C. Hawkins

    Research output: Chapter in Book/Report/Conference proceedingChapter

    Abstract

    In this review article, we describe some advances in applications of the hyperinterpolation operator introduced by Sloan about two decades ago (J Approx Theory 83:238–254, 1995). In particular, our focus is on reviewing the application of the scalar and vector-valued hyperinterpolation approximations for developing, analyzing and implementing fully-discrete high-order algorithms. Such approximations facilitate efficient simulation of scattering of acoustic, electromagnetic and elastic waves, exterior to connected and disconnected bounded three dimensional domains. The main contributions of this article are: (1) a unified (acoustic, electromagnetic, and elastic) approach for the three important classes of waves; (2) theoretical and numerical comparisons of the hyperinterpolation approximations in these three applications; and (3) new results for a class of unbounded heterogeneous media.
    Original languageEnglish
    Title of host publicationContemporary computational Mathematics - a celebration of the 80th birthday of Ian Sloan
    EditorsJosef Dick, Frances Y. Kuo, Henryk Woźniakowski
    Place of PublicationCham
    PublisherSpringer, Springer Nature
    Pages351-372
    Number of pages22
    ISBN (Electronic)9783319724560
    ISBN (Print)9783319724553
    DOIs
    Publication statusPublished - 2018

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