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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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Adaptive discontinuous Galerkin methods for elliptic interface problems
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by Andrea Cangiani, Emmanuil H. Georgoulis and Younis A. Sabawi PDF
Math. Comp. 87 (2018), 2675-2707 Request permission

Abstract:

An interior-penalty discontinuous Galerkin (dG) method for an \penalty-10000 elliptic interface problem involving, possibly, curved interfaces, with flux-\penalty-10000 balancing interface conditions, e.g., modelling mass transfer of solutes through semi-permeable membranes, is considered. The method allows for extremely general curved element shapes employed to resolve the interface geometry exactly. A residual-type a posteriori error estimator for this dG method is proposed and upper and lower bounds of the error in the respective dG-energy norm are proven. The a posteriori error bounds are subsequently used to prove a basic a priori convergence result. The theory presented is complemented by a series of numerical experiments. The presented approach applies immediately to the case of curved domains with non-essential boundary conditions, too.
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Additional Information
  • Andrea Cangiani
  • Affiliation: Department of Mathematics, University of Leicester, University Road, Leicester, LE1 7RH, United Kingdom
  • MR Author ID: 757643
  • Email: Andrea.Cangiani@le.ac.uk
  • Emmanuil H. Georgoulis
  • Affiliation: Department of Mathematics, University of Leicester, University Road, Leicester, LE1 7RH, United Kingdom; and Department of Mathematics, School of Applied Mathematical and Physical Sciences, National Technical University of Athens, Zografou 15780, Greece
  • Email: Emmanuil.Georgoulis@le.ac.uk
  • Younis A. Sabawi
  • Affiliation: Department of Mathematics, University of Leicester, University Road, Leicester, LE1 7RH, United Kingdom; and Department of Mathematics, Faculty of Science and Health, University of Koya, Kurdistan, Iraq; and Department of Mathematics Education, Faculty of Education, University of Ishik, Kurdistan, Iraq
  • Email: younis.sabawi@ishik.edu.iq
  • Received by editor(s): September 16, 2016
  • Received by editor(s) in revised form: May 31, 2017
  • Published electronically: February 20, 2018
  • © Copyright 2018 American Mathematical Society
  • Journal: Math. Comp. 87 (2018), 2675-2707
  • MSC (2010): Primary 65N30
  • DOI: https://doi.org/10.1090/mcom/3322
  • MathSciNet review: 3834681