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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 narrow-band unfitted finite element method for elliptic PDEs posed on surfaces
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by Maxim A. Olshanskii and Danil Safin PDF
Math. Comp. 85 (2016), 1549-1570 Request permission

Abstract:

This paper studies a method for solving elliptic partial differential equations posed on hypersurfaces in $\mathbb {R}^N$, $N=2,3$. The method allows a surface to be given implicitly as a zero level of a level set function. A surface equation is extended to a narrow-band neighborhood of the surface. The resulting extended equation is a non-degenerate PDE, and it is solved on a bulk mesh that is unaligned to the surface. An unfitted finite element method is used to discretize extended equations. Error estimates are proved for finite element solutions in the bulk domain and restricted to the surface. The analysis admits finite elements of a higher order and gives sufficient conditions for archiving the optimal convergence order in the energy norm. Several numerical examples illustrate the properties of the method.
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Additional Information
  • Maxim A. Olshanskii
  • Affiliation: Department of Mathematics, University of Houston, Houston, Texas 77204-3008
  • MR Author ID: 343398
  • Email: molshan@math.uh.edu
  • Danil Safin
  • Affiliation: Department of Mathematics, University of Houston, Houston, Texas 77204-3008
  • Email: dksafin@math.uh.edu
  • Received by editor(s): January 29, 2014
  • Received by editor(s) in revised form: December 30, 2014
  • Published electronically: September 16, 2015
  • Additional Notes: This work has been supported by NSF through the Division of Mathematical Sciences grant 1315993
  • © Copyright 2015 American Mathematical Society
  • Journal: Math. Comp. 85 (2016), 1549-1570
  • MSC (2010): Primary 65N15, 65N30, 76D45, 76T99
  • DOI: https://doi.org/10.1090/mcom/3030
  • MathSciNet review: 3471100