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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.

What is MCQ? The Mathematical Citation Quotient (MCQ) measures journal impact by looking at citations over a five-year period. Subscribers to MathSciNet may click through for more detailed information.

 

Entropy-satisfying relaxation method with large time-steps for Euler IBVPs
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by Frédéric Coquel, Quang Long Nguyen, Marie Postel and Quang Huy Tran PDF
Math. Comp. 79 (2010), 1493-1533 Request permission

Abstract:

This paper could have been given the title: “How to positively and implicitly solve Euler equations using only linear scalar advections.” The new relaxation method we propose is able to solve Euler-like systems—as well as initial and boundary value problems—with real state laws at very low cost, using a hybrid explicit-implicit time integration associated with the Arbitrary Lagrangian-Eulerian formalism. Furthermore, it possesses many attractive properties, such as: (i) the preservation of positivity for densities; (ii) the guarantee of min-max principle for mass fractions; (iii) the satisfaction of entropy inequality, under an expressible bound on the CFL ratio. The main feature that will be emphasized is the design of this optimal time-step, which takes into account data not only from the inner domain but also from the boundary conditions.
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Additional Information
  • Frédéric Coquel
  • Affiliation: UPMC Univ Paris 06, UMR 7598, Laboratoire Jacques-Louis Lions, F-75005, Paris, France
  • Quang Long Nguyen
  • Affiliation: CNRS, UMR 7598, Laboratoire Jacques-Louis Lions, F-75005, Paris, France
  • Marie Postel
  • Affiliation: Département Mathématiques Appliquées, Institut Français du Pétrole, 1 et 4 avenue de Bois-Préau, 92852 Rueil-Malmaison Cedex, France
  • Quang Huy Tran
  • Affiliation: Département Mathématiques Appliquées, Institut Français du Pétrole, 1 et 4 avenue de Bois-Préau, 92852 Rueil-Malmaison Cedex, France
  • Received by editor(s): December 31, 2007
  • Received by editor(s) in revised form: February 27, 2009
  • Published electronically: February 23, 2010
  • © Copyright 2010 American Mathematical Society
    The copyright for this article reverts to public domain 28 years after publication.
  • Journal: Math. Comp. 79 (2010), 1493-1533
  • MSC (2010): Primary 65M08; Secondary 35L04
  • DOI: https://doi.org/10.1090/S0025-5718-10-02339-2
  • MathSciNet review: 2630001