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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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On stability issues for IMEX schemes applied to 1D scalar hyperbolic equations with stiff reaction terms
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by R. Donat, I. Higueras and A. Martínez-Gavara PDF
Math. Comp. 80 (2011), 2097-2126 Request permission

Abstract:

The application of a Method of Lines to a hyperbolic PDE with source terms gives rise to a system of ODEs containing terms that may have very different stiffness properties. In this case, Implicit-Explicit Runge-Kutta (IMEX-RK) schemes are particularly useful as high order time integrators because they allow an explicit handling of the convective terms, which can be discretized using the highly developed shock capturing technology, together with an implicit treatment of the source terms, necessary for stability reasons.

Motivated by the structure of the source term in a model problem introduced by LeVeque and Yee in [J. Comput. Phys. 86 (1990)], in this paper we study the preservation of certain invariant regions as a weak stability constraint. For the class of source terms considered in this paper, the unit interval is an invariant region for the model balance law. In the first part of the paper, we consider first order time discretizations, which are the basic building blocks of higher order IMEX-RK schemes, and study the conditions that guarantee that $[0,1]$ is also an invariant region for the numerical scheme. In the second part of the paper, we study the conditions that ensure the preservation of this property for higher order IMEX schemes.

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Additional Information
  • R. Donat
  • Affiliation: Departament de Matemàtica Aplicada, Universitat de València, 46100 Burjassot, Spain
  • Email: donat@uv.es
  • I. Higueras
  • Affiliation: Departamento de Ingeniería Matemática e Informática, Universidad Pública de Navarra, 31006 Pamplona, Spain
  • Email: higueras@unavarra.es
  • A. Martínez-Gavara
  • Affiliation: Departamento de Matemática Aplicada I, Universidad de Sevilla, 41012 Sevilla, Spain
  • Email: gavara@us.es
  • Received by editor(s): July 31, 2009
  • Received by editor(s) in revised form: April 26, 2010, and July 6, 2010
  • Published electronically: February 4, 2011
  • Additional Notes: The authors acknowledge support from projects MTM2008-00974, MTM2008-00785, MTM2006-01275 and MTM2009-07719.
  • © Copyright 2011 American Mathematical Society
    The copyright for this article reverts to public domain 28 years after publication.
  • Journal: Math. Comp. 80 (2011), 2097-2126
  • MSC (2010): Primary 35L65, 65M20, 65L06, 65L20, 65M12
  • DOI: https://doi.org/10.1090/S0025-5718-2011-02463-4
  • MathSciNet review: 2813350