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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 finite element data assimilation method for the wave equation
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by Erik Burman, Ali Feizmohammadi and Lauri Oksanen HTML | PDF
Math. Comp. 89 (2020), 1681-1709 Request permission

Abstract:

We design a primal-dual stabilized finite element method for the numerical approximation of a data assimilation problem subject to the acoustic wave equation. For the forward problem, piecewise affine, continuous, finite element functions are used for the approximation in space and backward differentiation is used in time. Stabilizing terms are added on the discrete level. The design of these terms is driven by numerical stability and the stability of the continuous problem, with the objective of minimizing the computational error. Error estimates are then derived that are optimal with respect to the approximation properties of the numerical scheme and the stability properties of the continuous problem. The effects of discretizing the (smooth) domain boundary and other perturbations in data are included in the analysis.
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Additional Information
  • Erik Burman
  • Affiliation: Department of Mathematics, University College London, London, UK-WC1E 6BT, United Kingdom
  • MR Author ID: 602430
  • Email: e.burman@ucl.ac.uk
  • Ali Feizmohammadi
  • Affiliation: Department of Mathematics, University College London, London, UK-WC1E 6BT, United Kingdom
  • ORCID: 0000-0002-3850-8091
  • Email: a.feizmohammadi@ucl.ac.uk
  • Lauri Oksanen
  • Affiliation: Department of Mathematics, University College London, London, UK-WC1E 6BT, United Kingdom
  • MR Author ID: 906909
  • ORCID: 0000-0002-3228-7507
  • Email: l.oksanen@ucl.ac.uk
  • Received by editor(s): November 26, 2018
  • Received by editor(s) in revised form: September 16, 2019, and November 8, 2019
  • Published electronically: February 18, 2020
  • Additional Notes: The first author acknowledges funding by EPSRC grants EP/P01576X/1 and EP/P012434/1
    The second author acknowledges funding by EPSRC grant EP/P01593X/1
    The third author acknowledges funding by EPSRC grants EP/P01593X/1 and EP/R002207/1
  • © Copyright 2020 American Mathematical Society
  • Journal: Math. Comp. 89 (2020), 1681-1709
  • MSC (2010): Primary 65M32, 65M60; Secondary 35R30, 65M12
  • DOI: https://doi.org/10.1090/mcom/3508
  • MathSciNet review: 4081915