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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.

 

Hybridizable discontinuous Galerkin and mixed finite element methods for elliptic problems on surfaces
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by Bernardo Cockburn and Alan Demlow PDF
Math. Comp. 85 (2016), 2609-2638 Request permission

Abstract:

We define and analyze hybridizable discontinuous Galerkin methods for the Laplace-Beltrami problem on implicitly defined surfaces. We show that the methods can retain the same convergence and superconvergence properties they enjoy in the case of flat surfaces. Special attention is paid to the relative effect of approximation of the surface and that introduced by discretizing the equations. In particular, we show that when the geometry is approximated by polynomials of the same degree of those used to approximate the solution, although the optimality of the approximations is preserved, the superconvergence is lost. To recover it, the surface has to be approximated by polynomials of one additional degree. We also consider mixed surface finite element methods as a natural part of our presentation. Numerical experiments verifying and complementing our theoretical results are shown.
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Additional Information
  • Bernardo Cockburn
  • Affiliation: School of Mathematics, University of Minnesota, Minnesota 55455 – and – Department of Mathematics and Statistics, King Fahd University of Petroleum and Minerals, Dahran, Saudi Arabia
  • Email: cockburn@math.umn.edu
  • Alan Demlow
  • Affiliation: Department of Mathematics, Texas A&M University, College Station, Texas 77843–3368
  • MR Author ID: 693541
  • Email: demlow@math.tamu.edu
  • Received by editor(s): June 19, 2014
  • Received by editor(s) in revised form: February 17, 2015
  • Published electronically: March 4, 2016
  • Additional Notes: The first author was partially supported by NSF grant DMS-1115331.
    The second author was partially supported by NSF grant DMS-1318652.
  • © Copyright 2016 American Mathematical Society
  • Journal: Math. Comp. 85 (2016), 2609-2638
  • MSC (2010): Primary 58J32, 65N15, 65N30
  • DOI: https://doi.org/10.1090/mcom/3093
  • MathSciNet review: 3522964