research article
Discrete maximum principle for Galerkin approximations of the Laplace operator on arbitrary meshes
We derive a nonlinear stabilized Galerkin approximation of the Laplace operator for which we prove a discrete maximum principle on arbitrary meshes and for arbitrary space dimension without resorting to the well-known acute condition or generalizations thereof. We also prove the existence of a discrete solution and discuss the extension of the scheme to convection–diffusion–reaction equations. Finally, we present examples showing that the new scheme cures local minima produced by the standard Galerkin approach while maintaining first-order accuracy in the H1-norm.
Type
research article
Author(s)
Ern, Alexandre
Date Issued
2004
Volume
338
Issue
8
Start page
641
End page
646
Editorial or Peer reviewed
REVIEWED
Written at
EPFL
EPFL units
Available on Infoscience
April 24, 2007
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