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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.

 

An anisotropic finite element method on polyhedral domains: Interpolation error analysis
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by Hengguang Li PDF
Math. Comp. 87 (2018), 1567-1600 Request permission

Abstract:

On a polyhedral domain $\Omega \subset \mathbb R^3$, consider the Poisson equation with the Dirichlet boundary condition. For singular solutions from the non-smoothness of the domain boundary, we propose new anisotropic mesh refinement algorithms to improve the convergence of finite element approximation. The proposed algorithm is simple, explicit, and requires less geometric conditions on the mesh and on the domain. Then, we develop interpolation error estimates in suitable weighted spaces for the anisotropic mesh, especially for the tetrahedra violating the maximum angle condition. These estimates can be used to design optimal finite element methods approximating singular solutions. We report numerical test results to validate the method.
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Additional Information
  • Hengguang Li
  • Affiliation: Department of Mathematics, Wayne State University, Detroit, Michigan 48202
  • MR Author ID: 835341
  • Email: li@wayne.edu
  • Received by editor(s): July 12, 2016
  • Received by editor(s) in revised form: March 1, 2017
  • Published electronically: October 31, 2017
  • Additional Notes: The author was supported in part by the NSF Grant DMS-1418853, by the Natural Science Foundation of China Grant 11628104, and by the Wayne State University Grants Plus Program
  • © Copyright 2017 American Mathematical Society
  • Journal: Math. Comp. 87 (2018), 1567-1600
  • MSC (2010): Primary 65N15, 65N30, 65N50; Secondary 35J15, 35J75
  • DOI: https://doi.org/10.1090/mcom/3290
  • MathSciNet review: 3787385