Skip to Main Content

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.

 

Discrete functional analysis tools for Discontinuous Galerkin methods with application to the incompressible Navier–Stokes equations
HTML articles powered by AMS MathViewer

by Daniele A. Di Pietro and Alexandre Ern PDF
Math. Comp. 79 (2010), 1303-1330 Request permission

Abstract:

Two discrete functional analysis tools are established for spaces of piecewise polynomial functions on general meshes: (i) a discrete counterpart of the continuous Sobolev embeddings, in both Hilbertian and non-Hilbertian settings; (ii) a compactness result for bounded sequences in a suitable Discontinuous Galerkin norm, together with a weak convergence property for some discrete gradients. The proofs rely on techniques inspired by the Finite Volume literature, which differ from those commonly used in Finite Element analysis. The discrete functional analysis tools are used to prove the convergence of Discontinuous Galerkin approximations of the steady incompressible Navier–Stokes equations. Two discrete convective trilinear forms are proposed, a nonconservative one relying on Temam’s device to control the kinetic energy balance and a conservative one based on a nonstandard modification of the pressure.
References
Similar Articles
Additional Information
  • Daniele A. Di Pietro
  • Affiliation: Institut Français du Pétrole, 1 & 4, avenue du Bois-Préau, 92852 Rueil-Malmaison Cedex, France
  • Email: daniele-antonio.di-pietro@ifp.fr
  • Alexandre Ern
  • Affiliation: Université Paris-Est, CERMICS, Ecole des Ponts, Champs sur Marne, 77455 Marne la Vallée Cedex 2, France
  • MR Author ID: 349433
  • Email: ern@cermics.enpc.fr
  • Received by editor(s): May 12, 2008
  • Received by editor(s) in revised form: March 25, 2009
  • Published electronically: March 3, 2010
  • © Copyright 2010 American Mathematical Society
    The copyright for this article reverts to public domain 28 years after publication.
  • Journal: Math. Comp. 79 (2010), 1303-1330
  • MSC (2010): Primary 65N12, 65N30, 76D05, 35Q30, 76D07
  • DOI: https://doi.org/10.1090/S0025-5718-10-02333-1
  • MathSciNet review: 2629994