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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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A domain decomposition method for semilinear hyperbolic systems with two-scale relaxations
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by Shi Jin, Jian-guo Liu and Li Wang PDF
Math. Comp. 82 (2013), 749-779 Request permission

Abstract:

We present a domain decomposition method on a semilinear hyperbolic system with multiple relaxation times. In the region where the relaxation time is small, an asymptotic equilibrium equation can be used for computational efficiency. An interface condition based on the sign of the characteristic speed at the interface is provided to couple the two systems in a domain decomposition setting. A rigorous analysis, based on the Laplace Transform, on the $L^2$ error estimate is presented for the linear case, which shows how the error of the domain decomposition method depends on the smaller relaxation time, and the boundary and interface layer effects. The given convergence rate is optimal. We present a numerical implementation of this domain decomposition method, and give some numerical results in order to study the performance of this method.
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Additional Information
  • Shi Jin
  • Affiliation: Department of Mathematics, University of Wisconsin-Madison, 480 Lincoln Drive, Madison, Wisconsin 53706
  • Email: jin@math.wisc.edu
  • Jian-guo Liu
  • Affiliation: Department of Physics and Department of Mathematics, Duke University, Durham, North Carolina 27708
  • MR Author ID: 233036
  • ORCID: 0000-0002-9911-4045
  • Email: Jian-Guo.Liu@duke.edu
  • Li Wang
  • Affiliation: Department of Mathematics, University of Wisconsin-Madison, 480 Lincoln Drive, Madison, Wisconsin 53706
  • Email: wangli@math.wisc.edu
  • Received by editor(s): February 17, 2011
  • Received by editor(s) in revised form: October 9, 2011
  • Published electronically: October 9, 2012
  • Additional Notes: This research was partially supported by NSF grant No. DMS-0608720, and NSF FRG grant DMS-0757285. The first author was also supported by a Van Vleck Distinguished Research Prize and a Vilas Associate Award from the University of Wisconsin-Madison
    The second author research was supported by NSF grant DMS 1011738
  • © Copyright 2012 American Mathematical Society
    The copyright for this article reverts to public domain 28 years after publication.
  • Journal: Math. Comp. 82 (2013), 749-779
  • MSC (2010): Primary 65M55, 35L50
  • DOI: https://doi.org/10.1090/S0025-5718-2012-02643-3
  • MathSciNet review: 3008837