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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.

 

Convergence analysis for a stabilized linear semi-implicit numerical scheme for the nonlocal Cahn–Hilliard equation
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by Xiao Li, Zhonghua Qiao and Cheng Wang HTML | PDF
Math. Comp. 90 (2021), 171-188 Request permission

Abstract:

In this paper, we provide a detailed convergence analysis for a first order stabilized linear semi-implicit numerical scheme for the nonlocal Cahn–Hilliard equation, which follows from consistency and stability estimates for the numerical error function. Due to the complicated form of the nonlinear term, we adopt the discrete $H^{-1}$ norm for the error function to establish the convergence result. In addition, the energy stability obtained by Du et al., [J. Comput. Phys. 363 (2018), pp. 39–54] requires an assumption on the uniform $\ell ^\infty$ bound of the numerical solution, and such a bound is figured out in this paper by conducting the higher order consistency analysis. Taking the view that the numerical solution is indeed the exact solution with a perturbation, the error function is $\ell ^\infty$ bounded uniformly under a loose constraint of the time step size, which then leads to the uniform maximum-norm bound of the numerical solution.
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Additional Information
  • Xiao Li
  • Affiliation: Department of Applied Mathematics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong
  • ORCID: 0000-0003-3598-9077
  • Email: xiao1li@polyu.edu.hk
  • Zhonghua Qiao
  • Affiliation: Department of Applied Mathematics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong
  • MR Author ID: 711384
  • Email: zqiao@polyu.edu.hk
  • Cheng Wang
  • Affiliation: Department of Mathematics, The University of Massachusetts, North Dartmouth, Massachusetts
  • MR Author ID: 652762
  • Email: cwang1@umassd.edu
  • Received by editor(s): November 13, 2018
  • Received by editor(s) in revised form: January 5, 2020, and March 16, 2020
  • Published electronically: September 14, 2020
  • Additional Notes: The first author’s work was partially supported by NSFC grant 11801024.
    The second author’s work was partially supported by the Hong Kong Research Council GRF grants 15325816 and 15300417.
    The third author’s work was partially supported by NSF grant NSF DMS-1418689.
    The second author is the corresponding author.
  • © Copyright 2020 American Mathematical Society
  • Journal: Math. Comp. 90 (2021), 171-188
  • MSC (2010): Primary 35Q99, 65M12, 65M15, 65M70
  • DOI: https://doi.org/10.1090/mcom/3578
  • MathSciNet review: 4166457