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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 posteriori error estimation for $hp$-adaptivity for fourth-order equations
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by Peter K. Moore and Marina Rangelova PDF
Math. Comp. 79 (2010), 677-705 Request permission

Abstract:

A posteriori error estimates developed to drive hp-adaptivity for second-order reaction-diffusion equations are extended to fourth-order equations. A $C^1$ hierarchical finite element basis is constructed from Hermite-Lobatto polynomials. A priori estimates of the error in several norms for both the interpolant and finite element solution are derived. In the latter case this requires a generalization of the well-known Aubin-Nitsche technique to time-dependent fourth-order equations. We show that the finite element solution and corresponding Hermite-Lobatto interpolant are asymptotically equivalent. A posteriori error estimators based on this equivalence for solutions at two orders are presented. Both are shown to be asymptotically exact on grids of uniform order. These estimators can be used to control various adaptive strategies. Computational results for linear steady-state and time-dependent equations corroborate the theory and demonstrate the effectiveness of the estimators in adaptive settings.
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Additional Information
  • Peter K. Moore
  • Affiliation: Department of Mathematics, Southern Methodist University, Dallas, Texas 75275
  • Marina Rangelova
  • Affiliation: eVerge Group, Plano, Texas 75093
  • Received by editor(s): December 11, 2007
  • Received by editor(s) in revised form: April 14, 2009
  • Published electronically: July 22, 2009
  • © Copyright 2009 American Mathematical Society
    The copyright for this article reverts to public domain 28 years after publication.
  • Journal: Math. Comp. 79 (2010), 677-705
  • MSC (2000): Primary 65M60; Secondary 65M15
  • DOI: https://doi.org/10.1090/S0025-5718-09-02290-X
  • MathSciNet review: 2600539