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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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A nonconforming combination of the finite element and volume methods with an anisotropic mesh refinement for a singularly perturbed convection-diffusion equation
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by Song Wang and Zi-Cai Li PDF
Math. Comp. 72 (2003), 1689-1709 Request permission

Abstract:

In this paper we formulate and analyze a discretization method for a 2D linear singularly perturbed convection-diffusion problem with a singular perturbation parameter $\varepsilon$. The method is based on a nonconforming combination of the conventional Galerkin piecewise linear triangular finite element method and an exponentially fitted finite volume method, and on a mixture of triangular and rectangular elements. It is shown that the method is stable with respect to a semi-discrete energy norm and the approximation error in the semi-discrete energy norm is bounded by $\displaystyle C h\sqrt {\left | \frac {\ln \varepsilon }{\ln h}\right |}$ with $C$ independent of the mesh parameter $h$, the diffusion coefficient $\varepsilon$ and the exact solution of the problem.
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Additional Information
  • Song Wang
  • Affiliation: Department of Mathematics & Statistics, The University of Western Australia, 35 Stirling Highway, Crawley, Western Australia 6009, Australia
  • Email: swang@maths.uwa.edu.au
  • Zi-Cai Li
  • Affiliation: Department of Applied Mathematics, National Sun Yat-sen University, Kaohsiung, Taiwan 80424
  • Email: zcli@math.nsysu.edu.tw
  • Received by editor(s): June 7, 2001
  • Received by editor(s) in revised form: December 28, 2001
  • Published electronically: May 21, 2003
  • © Copyright 2003 American Mathematical Society
  • Journal: Math. Comp. 72 (2003), 1689-1709
  • MSC (2000): Primary 65N30; Secondary 76M10
  • DOI: https://doi.org/10.1090/S0025-5718-03-01516-3
  • MathSciNet review: 1986800