Strongly nonlinear degenerated elliptic unilateral problems via convergence of truncations

We prove an existence theorem for a strongly nonlinear degenerated elliptic inequalities involving nonlinear operators of the form $Au+g(x,u,abla u)$. Here $A$ is a Leray-Lions operator, $g(x,s,xi)$ is a lower order term satisfying some natural growth with respect to $|abla u|$. There is no growth r...

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Bibliographic Details
Main Authors: Youssef Akdim, Elhoussine Azroul, Abdelmoujib Benkirane
Format: Article
Language:English
Published: Texas State University 2002-12-01
Series:Electronic Journal of Differential Equations
Subjects:
Online Access:http://ejde.math.txstate.edu/conf-proc/09/a3/abstr.html
Description
Summary:We prove an existence theorem for a strongly nonlinear degenerated elliptic inequalities involving nonlinear operators of the form $Au+g(x,u,abla u)$. Here $A$ is a Leray-Lions operator, $g(x,s,xi)$ is a lower order term satisfying some natural growth with respect to $|abla u|$. There is no growth restrictions with respect to $|u|$, only a sign condition. Under the assumption that the second term belongs to $W^{-1,p'}(Omega,w^*)$, we obtain the main result via strong convergence of truncations.
ISSN:1072-6691