2004-Fez conference on Differential Equations and Mechanics. Electron. J. Diff. Eqns., Conference 11, 2004, pp. 129-134.

Stability of the principal eigenvalue of a nonlinear elliptic system

Abdelouahed El Khalil, Mohammed Ouanan, Abdelfattah Touzani

Abstract:
This paper concerns some special properties of the principal eigenvalue of nonlinear elliptic systems with Dirichlet boundary conditions. We study the stability with respect to the exponents $p$ and $q$; and the dependence on the domain variations.

Published October 15, 2004.
Math Subject Classifications: 35P20, 35J70, 35J20.
Key Words: p-Laplacian operator; principal eigenvalue; stability; segment property; dependence on the domain.

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Abdelouahed El Khalil
Department of Mathematics and Industrial Genie
Ecole Polytechnic School Montreal, Montreal, Canada
email: lkhlil@hotmail.com
Mohammed Ouanan
Department of mathematics
Faculty of sciences Dhar-Mahraz
P.O. Box 1796 Atlas
Fez 30000, Morocco
email :m_ouanan@hotmail.com
Abdelfattah Touzani
Department of mathematics
Faculty of sciences Dhar-Mahraz
P.O. Box 1796 Atlas
Fez 30000, Morocco
email: atouzani@iam.net.ma

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