Three solutions for singular p-Laplacian type equations

In this paper, we consider the singular $p$-Laplacian type equation $$displaylines{ -hbox{div}(|x|^{-eta} a(x, abla u)) =lambda f(x,u),quad hbox{in }Omega,cr u=0,quad hbox{on }partialOmega, }$$ where $0leqeta<N-p$, $Omega$ is a smooth bounded domain in $mathbb{R}^N$ containing the origi...

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Bibliographic Details
Main Authors: Huiwen Yan, Di Geng, Zhou Yang
Format: Article
Language:English
Published: Texas State University 2008-04-01
Series:Electronic Journal of Differential Equations
Subjects:
Online Access:http://ejde.math.txstate.edu/Volumes/2008/61/abstr.html
Description
Summary:In this paper, we consider the singular $p$-Laplacian type equation $$displaylines{ -hbox{div}(|x|^{-eta} a(x, abla u)) =lambda f(x,u),quad hbox{in }Omega,cr u=0,quad hbox{on }partialOmega, }$$ where $0leqeta<N-p$, $Omega$ is a smooth bounded domain in $mathbb{R}^N$ containing the origin, $f$ satisfies some growth and singularity conditions. Under some mild assumptions on $a$, applying the three critical points theorem developed by Bonanno, we establish the existence of at least three distinct weak solutions to the above problem if $f$ admits some hypotheses on the behavior at $u=0$ or perturbation property.
ISSN:1072-6691