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Comptes Rendus Mathématique
Volume 339, n° 10
pages 727-732 (novembre 2004)
Doi : 10.1016/j.crma.2004.09.013
Received : 5 February 2004 ;  accepted : 13 September 2004
La condensation de la matrice masse, ou mass-lumping, pour les éléments finis mixtes de Raviart-Thomas-Nédélec dʼordre 1
Mass-lumping for the first order Raviart-Thomas-Nédélec finite elements
 

Patrick Lacoste
CEA DAM-DIF, B.P. 12, 91680 Bruyères-Le-Châtel, France 

Résumé

On présente un moyen pratique de réaliser la condensation de masse des éléments finis de Raviart-Thomas-Nédélec dʼordre 1. Appliqué à lʼintégration des équations de Maxwell posées au second ordre, cela permet dʼutiliser des méthodes explicites dʼintégration du système. Pour citer cet article : P. Lacoste, C. R. Acad. Sci. Paris, Ser. I 339 (2004).

The full text of this article is available in PDF format.
Abstract

. We present practical means to obtain a positive diagonal matrix for the first order Raviart-Thomas-Nédélec finite elements. Applying it to the second order Maxwell equations allows us to use explicit time schemes to solve the resulting differential system. To cite this article: P. Lacoste, C. R. Acad. Sci. Paris, Ser. I 339 (2004).

The full text of this article is available in PDF format.


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