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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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Adaptive multiresolution discontinuous Galerkin schemes for conservation laws
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by Nune Hovhannisyan, Siegfried Müller and Roland Schäfer PDF
Math. Comp. 83 (2014), 113-151 Request permission

Abstract:

A multiresolution-based adaptation concept is proposed that aims at accelerating discontinuous Galerkin schemes applied to non-linear hyperbolic conservation laws. Opposite to standard adaptation concepts no error estimates are needed to tag mesh elements for refinement. Instead of this, a multiresolution analysis is performed on a hierarchy of nested grids for the data given on a uniformly refined mesh. This provides difference information between successive refinement levels that may become negligibly small in regions where the solution is locally smooth. Applying hard thresholding the data are highly compressed and local grid adaptation is triggered by the remaining significant coefficients. A central mathematical problem addressed in this work is then to show at least for scalar one-dimensional problems that choosing an appropriate threshold value, the adaptive solution is of the same accuracy as the reference solution on a uniformly refined mesh. Numerical comparisons demonstrate the efficiency of the concept.
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Additional Information
  • Nune Hovhannisyan
  • Affiliation: Faculty of Informatics and Applied Mathematics, Alex Manoogian 1, Yerevan 0025, Armenia
  • Email: alnune03@yahoo.com
  • Siegfried Müller
  • Affiliation: Institut für Geometrie und Praktische Mathematik, RWTH Aachen University, Templergraben 55, 52056 Aachen, Germany
  • Email: mueller@igpm.rwth-aachen.de
  • Roland Schäfer
  • Affiliation: Institut für Geometrie und Praktische Mathematik, RWTH Aachen University, Templergraben 55, 52056 Aachen, Germany
  • Email: schaefer@igpm.rwth-aachen.de
  • Received by editor(s): September 13, 2010
  • Received by editor(s) in revised form: October 20, 2011, March 6, 2012, and June 19, 2012
  • Published electronically: July 10, 2013
  • Additional Notes: This work has been performed with funding by the Deutsche Forschungsgemeinschaft in the Collaborative Research Center SFB 401 “Flow Modulation and Fluid-Structure Interaction at Airplane Wings” of RWTH Aachen University, Germany.
  • © Copyright 2013 American Mathematical Society
    The copyright for this article reverts to public domain 28 years after publication.
  • Journal: Math. Comp. 83 (2014), 113-151
  • MSC (2010): Primary 35L65, 65M12, 65M60, 65T60, 74S05
  • DOI: https://doi.org/10.1090/S0025-5718-2013-02732-9
  • MathSciNet review: 3120584