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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 the spectral vanishing viscosity method for periodic fractional conservation laws
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by Simone Cifani and Espen R. Jakobsen
Math. Comp. 82 (2013), 1489-1514
DOI: https://doi.org/10.1090/S0025-5718-2013-02690-7
Published electronically: March 19, 2013

Abstract:

We introduce and analyze a spectral vanishing viscosity approximation of periodic fractional conservation laws. The fractional part of these equations can be a fractional Laplacian or other non-local operators that are generators of pure jump Lévy processes. To accommodate for shock solutions, we first extend to the periodic setting the Kružkov-Alibaud entropy formulation and prove well-posedness. Then we introduce the numerical method, which is a non-linear Fourier Galerkin method with an additional spectral viscosity term. This type of approximation was first introduced by Tadmor for pure conservation laws. We prove that this non-monotone method converges to the entropy solution of the problem, that it retains the spectral accuracy of the Fourier method, and that it diagonalizes the fractional term reducing dramatically the computational cost induced by this term. We also derive a robust $L^1$-error estimate, and provide numerical experiments for the fractional Burgers’ equation.
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Bibliographic Information
  • Simone Cifani
  • Affiliation: Department of Mathematics, Norwegian University of Science and Technology (NTNU), N-7491 Trondheim, Norway
  • Email: simone.cifani@math.ntnu.no
  • Espen R. Jakobsen
  • Affiliation: Department of Mathematics, Norwegian University of Science and Technology (NTNU), N-7491 Trondheim, Norway
  • Email: erj@math.ntnu.no
  • Received by editor(s): November 15, 2010
  • Received by editor(s) in revised form: November 29, 2011
  • Published electronically: March 19, 2013
  • Additional Notes: This research was supported by the Research Council of Norway (NFR) through the project “Integro-PDEs: Numerical Methods, Analysis, and Applications to Finance”.
  • © Copyright 2013 American Mathematical Society
    The copyright for this article reverts to public domain 28 years after publication.
  • Journal: Math. Comp. 82 (2013), 1489-1514
  • MSC (2010): Primary 65M70, 35K59, 35R09; Secondary 65M15, 65M12, 35K57, 35R11
  • DOI: https://doi.org/10.1090/S0025-5718-2013-02690-7
  • MathSciNet review: 3042572