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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.

 

The interior penalty virtual element method for the biharmonic problem
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by Jikun Zhao, Shipeng Mao, Bei Zhang and Fei Wang HTML | PDF
Math. Comp. 92 (2023), 1543-1574 Request permission

Abstract:

In this paper, an interior penalty virtual element method (IPVEM) is developed for solving the biharmonic problem on polygonal meshes. By modifying the existing $H^2$-conforming virtual element, an $H^1$-nonconforming virtual element is obtained with the same degrees of freedom as the usual $H^1$-conforming virtual element, such that it locally has $H^2$-regularity on each polygon in meshes. To enforce the $C^1$ continuity of the solution, an interior penalty formulation is adopted. Hence, this new numerical scheme can be regarded as a combination of the virtual element space and discontinuous Galerkin scheme. Compared with the existing methods, this approach has some advantages in reducing the degree of freedom and capability of handling hanging nodes. The well-posedness and optimal convergence of the IPVEM are proven in a mesh-dependent norm. We also derive a sharp estimate of the condition number of the linear system associated with IPVEM. Some numerical results are presented to verify the optimal convergence of the IPVEM and the sharp estimate of the condition number of the discrete problem. Besides, in the numerical test, the IPVEM has a good performance in computational accuracy by contrast with the other VEMs solving the biharmonic problem.
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Additional Information
  • Jikun Zhao
  • Affiliation: School of Mathematics and Statistics, Zhengzhou University, Zhengzhou 450001, People’s Republic of China
  • Email: jkzhao@zzu.edu.cn
  • Shipeng Mao
  • Affiliation: LSEC and Institute of Computational Mathematics, Academy of Mathematics and Systems Science, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
  • ORCID: 0000-0003-4115-6039
  • Email: maosp@lsec.cc.ac.cn
  • Bei Zhang
  • Affiliation: School of Sciences, Henan University of Technology, Zhengzhou 450001, People’s Republic of China
  • Email: beizhang@haut.edu.cn
  • Fei Wang
  • Affiliation: School of Mathematics and Statistics, Xi’an Jiaotong University, Xi’an, Shaanxi 710049, People’s Republic of China
  • ORCID: 0000-0002-9745-1195
  • Email: feiwang.xjtu@xjtu.edu.cn
  • Received by editor(s): April 22, 2022
  • Received by editor(s) in revised form: October 15, 2022, and December 11, 2022
  • Published electronically: February 8, 2023
  • Additional Notes: The first author was partially supported by National Natural Science Foundation of China (No. 11701522) and Natural Science Foundation of Henan Province (No. 222300420553). The second author was partially supported by National Natural Science Foundation of China (Nos 11871467, 12271514 and 12161141017). The third author was partially supported by National Natural Science Foundation of China (No. 12001170). The fourth author was partially supported by National Natural Science Foundation of China (No. 12171383).
  • © Copyright 2023 American Mathematical Society
  • Journal: Math. Comp. 92 (2023), 1543-1574
  • MSC (2020): Primary 65N30, 65N12
  • DOI: https://doi.org/10.1090/mcom/3828
  • MathSciNet review: 4570333