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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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Discrete analysis of domain decomposition approaches for mesh generation via the equidistribution principle
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by Ronald D. Haynes and Felix Kwok PDF
Math. Comp. 86 (2017), 233-273 Request permission

Abstract:

Moving mesh methods based on the equidistribution principle are powerful techniques for the space-time adaptive solution of evolution problems. Solving the resulting coupled system of equations, namely the original PDE and the mesh PDE, however, is challenging in parallel. Recently several Schwarz domain decomposition algorithms were proposed for this task and analyzed at the continuous level. However, after discretization, the resulting problems may not even be well posed, so the discrete algorithms require a different analysis, which is the subject of this paper. We prove that when the number of grid points is large enough, the classical parallel and alternating Schwarz methods converge to the unique monodomain solution. Thus, such methods can be used in place of Newton’s method, which can suffer from convergence difficulties for challenging problems. The analysis for the nonlinear domain decomposition algorithms is based on $M$–function theory and is valid for an arbitrary number of subdomains. An asymptotic convergence rate is provided and numerical experiments illustrate the results.
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Additional Information
  • Ronald D. Haynes
  • Affiliation: Department of Mathematics and Statistics, Memorial University of Newfoundland, St. John’s, Newfoundland, Canada, A1C 5S7
  • Felix Kwok
  • Affiliation: Department of Mathematics, Hong Kong Baptist University, Kowloon Tong, Hong Kong
  • MR Author ID: 825760
  • Received by editor(s): June 11, 2014
  • Received by editor(s) in revised form: April 16, 2015
  • Published electronically: April 13, 2016
  • © Copyright 2016 American Mathematical Society
  • Journal: Math. Comp. 86 (2017), 233-273
  • MSC (2010): Primary 65M55, 65N22, 65Y05, 65M50, 65N50
  • DOI: https://doi.org/10.1090/mcom/3095
  • MathSciNet review: 3557799