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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 2024 MCQ for Mathematics of Computation is 1.78.

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A new div-div-conforming symmetric tensor finite element space with applications to the biharmonic equation
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by Long Chen and Xuehai Huang;
Math. Comp. 94 (2025), 33-72
DOI: https://doi.org/10.1090/mcom/3957
Published electronically: March 20, 2024

Abstract:

A new $H(\operatorname {div}\operatorname {div})$-conforming finite element is presented, which avoids the need for supersmoothness by redistributing the degrees of freedom to edges and faces. This leads to a hybridizable mixed method with superconvergence for the biharmonic equation. Moreover, new finite element divdiv complexes are established. Finally, new weak Galerkin and $C^0$ discontinuous Galerkin methods for the biharmonic equation are derived.
References
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Bibliographic Information
  • Long Chen
  • Affiliation: Department of Mathematics, University of California at Irvine, Irvine, California 92697
  • MR Author ID: 735779
  • ORCID: 0000-0002-7345-5116
  • Email: chenlong@math.uci.edu
  • Xuehai Huang
  • Affiliation: School of Mathematics, Shanghai University of Finance and Economics, Shanghai 200433, People’s Republic of China
  • MR Author ID: 854280
  • ORCID: 0000-0003-2966-7426
  • Email: huang.xuehai@sufe.edu.cn
  • Received by editor(s): May 12, 2023
  • Received by editor(s) in revised form: November 1, 2023, December 22, 2023, and February 13, 2024
  • Published electronically: March 20, 2024
  • Additional Notes: The first author was supported by NSF DMS-2012465, and DMS-2309785. The second author was supported by the National Natural Science Foundation of China Project 12171300, and the Natural Science Foundation of Shanghai 21ZR1480500.
    The second author is the corresponding author.
  • © Copyright 2024 American Mathematical Society
  • Journal: Math. Comp. 94 (2025), 33-72
  • MSC (2020): Primary 65N30, 58J10, 65N12, 65N15
  • DOI: https://doi.org/10.1090/mcom/3957