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Mathematics of Computation

Published by the American Mathematical Society since 1960 (published as Mathematical Tables and other Aids to Computation 1943-1959), Mathematics of Computation is devoted to research articles of the highest quality in computational mathematics.

ISSN 1088-6842 (online) ISSN 0025-5718 (print)

The 2020 MCQ for Mathematics of Computation is 1.78.

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Error analysis of Trefftz-discontinuous Galerkin methods for the time-harmonic Maxwell equations
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by Ralf Hiptmair, Andrea Moiola and Ilaria Perugia PDF
Math. Comp. 82 (2013), 247-268 Request permission

Abstract:

In this paper, we extend to the time-harmonic Maxwell equations the $p$–version analysis technique developed in [R. Hiptmair, A. Moiola and I. Perugia, Plane wave discontinuous Galerkin methods for the 2D Helmholtz equation: analysis of the $p$-version, SIAM J. Numer. Anal., 49 (2011), 264-284] for Trefftz-discontinuous Galerkin approximations of the Helmholtz problem. While error estimates in a mesh-skeleton norm are derived parallel to the Helmholtz case, the derivation of estimates in a mesh-independent norm requires new twists in the duality argument. The particular case where the local Trefftz approximation spaces are built of vector-valued plane wave functions is considered, and convergence rates are derived.
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Additional Information
  • Ralf Hiptmair
  • Affiliation: Seminar for Applied Mathematics, ETH Zürich, 8092 Zürich, Switzerland
  • Email: ralf.hiptmair@sam.math.ethz.ch
  • Andrea Moiola
  • Affiliation: Seminar for Applied Mathematics, ETH Zürich, 8092 Zürich, Switzerland
  • Address at time of publication: Department of Mathematics and Statistics, University of Reading,Whiteknights, P.O. Box 220, Reading RG6 6AX, UK
  • Email: andrea.moiola@sam.math.ethz.ch
  • Ilaria Perugia
  • Affiliation: Dipartimento di Matematica, Università di Pavia, 27100 Pavia, Italy
  • MR Author ID: 366660
  • Email: ilaria.perugia@unipv.it
  • Received by editor(s): February 21, 2011
  • Received by editor(s) in revised form: September 3, 2011
  • Published electronically: July 3, 2012
  • © Copyright 2012 American Mathematical Society
    The copyright for this article reverts to public domain 28 years after publication.
  • Journal: Math. Comp. 82 (2013), 247-268
  • MSC (2010): Primary 65N15, 65N30, 35Q61
  • DOI: https://doi.org/10.1090/S0025-5718-2012-02627-5
  • MathSciNet review: 2983024