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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.

 

A multiscale method for highly oscillatory ordinary differential equations with resonance
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by Gil Ariel, Bjorn Engquist and Richard Tsai PDF
Math. Comp. 78 (2009), 929-956 Request permission

Abstract:

A multiscale method for computing the effective behavior of a class of stiff and highly oscillatory ordinary differential equations (ODEs) is presented. The oscillations may be in resonance with one another and thereby generate hidden slow dynamics. The proposed method relies on correctly tracking a set of slow variables whose dynamics is closed up to $\epsilon$ perturbation, and is sufficient to approximate any variable and functional that are slow under the dynamics of the ODE. This set of variables is detected numerically as a preprocessing step in the numerical methods. Error and complexity estimates are obtained. The advantages of the method is demonstrated with a few examples, including a commonly studied problem of Fermi, Pasta, and Ulam.
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Additional Information
  • Gil Ariel
  • Affiliation: Department of Mathematics, The University of Texas at Austin, Austin, Texas 78712
  • Email: ariel@math.utexas.edu
  • Bjorn Engquist
  • Affiliation: Department of Mathematics, The University of Texas at Austin, Austin, Texas 78712
  • MR Author ID: 63590
  • Email: engquist@math.utexas.edu
  • Richard Tsai
  • Affiliation: Department of Mathematics, The University of Texas at Austin, Austin, Texas 78712
  • MR Author ID: 731088
  • Email: ytsai@math.utexas.edu
  • Received by editor(s): June 19, 2007
  • Received by editor(s) in revised form: January 20, 2008
  • Published electronically: October 3, 2008

  • Dedicated: In Memory of Germund Dahlquist
  • © Copyright 2008 American Mathematical Society
    The copyright for this article reverts to public domain 28 years after publication.
  • Journal: Math. Comp. 78 (2009), 929-956
  • MSC (2000): Primary 65L05, 34E13, 34E20
  • DOI: https://doi.org/10.1090/S0025-5718-08-02139-X
  • MathSciNet review: 2476565