Partial Differential Equations
Monotone approximations of Green's functions
[Approximation monotone des fonctions de Green.]
Comptes Rendus. Mathématique, Tome 339 (2004) no. 6, pp. 395-400.

Nous étudions les approximations des fonctions de Green G dans un domaine Ω obtenues par approximation de la masse de Dirac δ0. Nous montrons que sous certaines conditions, ces approximations sont monotones, ce qui peut paraître surprenant.

We study the approximations of the Green's function G in a domain Ω obtained from an approximation of the Dirac mass δ0. We prove that under some conditions, these approximations converge monotonically to G, a rather surprising result.

Accepté le :
Publié le :
DOI : 10.1016/j.crma.2004.07.003
Chasseigne, Emmanuel 1 ; Ferreira, Raúl 2

1 Université de Tours, parc de Grandmont, 37200 Tours, France
2 Universidad Carlos III de Madrid, 28911 Leganés, Spain
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Chasseigne, Emmanuel; Ferreira, Raúl. Monotone approximations of Green's functions. Comptes Rendus. Mathématique, Tome 339 (2004) no. 6, pp. 395-400. doi : 10.1016/j.crma.2004.07.003. http://www.numdam.org/articles/10.1016/j.crma.2004.07.003/

[1] Bénilan, P. The Laplace operator (Dautray, R.; Lions, J.L., eds.), Mathematical Analysis and Numerical Methods for Science and Technology, Springer-Verlag, 1988

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