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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 relaxation scheme for conservation laws with a discontinuous coefficient
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by K. H. Karlsen, C. Klingenberg and N. H. Risebro PDF
Math. Comp. 73 (2004), 1235-1259 Request permission

Abstract:

We study a relaxation scheme of the Jin and Xin type for conservation laws with a flux function that depends discontinuously on the spatial location through a coefficient $k(x)$. If $k\in BV$, we show that the relaxation scheme produces a sequence of approximate solutions that converge to a weak solution. The Murat–Tartar compensated compactness method is used to establish convergence. We present numerical experiments with the relaxation scheme, and comparisons are made with a front tracking scheme based on an exact $2\times 2$ Riemann solver.
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Additional Information
  • K. H. Karlsen
  • Affiliation: Department of Mathematics, University of Bergen, Johs. Brunsgt. 12, N-5008 Bergen, Norway
  • Email: kennethk@mi.uib.no
  • C. Klingenberg
  • Affiliation: University of Würzburg, Department of Applied Mathematics and Statistics, Am Hubland, D-97074 Würzburg, Germany
  • MR Author ID: 221691
  • Email: klingen@mathematik.uni-wuerzburg.de
  • N. H. Risebro
  • Affiliation: Department of Mathematics, University of Oslo, P. O. Box 1053, Blindern, N-0316 Oslo, Norway
  • Email: nilshr@math.uio.no
  • Received by editor(s): June 5, 2002
  • Published electronically: December 22, 2003
  • Additional Notes: This work has been supported by the BeMatA program of the Research Council of Norway
  • © Copyright 2003 American Mathematical Society
  • Journal: Math. Comp. 73 (2004), 1235-1259
  • MSC (2000): Primary 35L65, 35L45, 65M06, 65M12
  • DOI: https://doi.org/10.1090/S0025-5718-03-01625-9
  • MathSciNet review: 2047086