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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.

 

Efficient nonlinear iteration schemes based on algebraic splitting for the incompressible Navier-Stokes equations
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by Leo G. Rebholz, Alex Viguerie and Mengying Xiao HTML | PDF
Math. Comp. 88 (2019), 1533-1557 Request permission

Abstract:

We propose new, efficient, and simple nonlinear iteration methods for the incompressible Navier-Stokes equations. The methods are constructed by applying Yosida-type algebraic splitting to the linear systems that arise from grad-div stabilized finite element implementations of incremental Picard and Newton iterations. They are efficient because at each nonlinear iteration, the same symmetric positive definite Schur complement system needs to be solved, which allows for CG to be used for inner and outer solvers, simple preconditioning, and the reusing of preconditioners. For the proposed incremental Picard-Yosida and Newton-Yosida iterations, we prove under small data conditions that the methods converge to the solution of the discrete nonlinear problem. Numerical tests are performed which illustrate the effectiveness of the method on a variety of test problems.
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Additional Information
  • Leo G. Rebholz
  • Affiliation: Department of Mathematical Sciences, Clemson University, Clemson, South Carolina 29634
  • MR Author ID: 787731
  • Email: rebholz@clemson.edu
  • Alex Viguerie
  • Affiliation: Department of Mathematics and Computer Science, Emory University, Atlanta, Georgia 30322
  • Address at time of publication: University of Pavia, Via Ferrata 3, Pavia, Italy, 27100
  • MR Author ID: 1255895
  • Email: alexander.viguerie@unipv.it
  • Mengying Xiao
  • Affiliation: Department of Mathematical Sciences, Clemson University, Clemson, South Carolina 29634
  • Address at time of publication: Department of Mathematics, College of William & Mary, Williamsburg, Virginia 23185
  • MR Author ID: 1120573
  • Email: mxiao01@wm.edu
  • Received by editor(s): August 9, 2017
  • Received by editor(s) in revised form: February 2, 2018, and June 4, 2018
  • Published electronically: January 23, 2019
  • Additional Notes: The research of the first author was partially supported by NSF grant DMS1522191 and U.S. Army grant 65294-MA
    The research of the fourth author was partially supported by NSF grant DMS1522191.
  • © Copyright 2019 American Mathematical Society
  • Journal: Math. Comp. 88 (2019), 1533-1557
  • MSC (2010): Primary 65N22, 35Q30, 65N30
  • DOI: https://doi.org/10.1090/mcom/3411
  • MathSciNet review: 3925476