"Indefinite elliptic problems in a domain" by Wenxiong Chen and Congming Li
 

Indefinite elliptic problems in a domain

Abstract

In this paper, we study the elliptic boundary value problem in a bounded domain Ω in Rn, with smooth boundary: { -Δu = R(x)cp u > 0 x ∈ Ω { u(x) = 0 x ∈ ∂Ω. where R(x) is a smooth function that may change signs. In [2], using a blowing up argument, Berestycki, Dolcetta, and Nirenberg, obtained a priori estimates and hence the existence of solutions for the problem when the exponent 1 < p < n+2/n-1. Inspired by their result, in this article, we use the method of moving planes to fill the gap between n+2/n-1 and the critical Sobolev exponent n+2/n-1. We obtain a priori estimates for the solutions for all 1 < p < n+2/n-1.

Department(s)

Mathematics

Document Type

Article

DOI

https://doi.org/10.3934/dcds.1997.3.333

Keywords

A priori estimates, Indefinite nonlinear elliptic equations, Method of moving planes

Publication Date

1-1-1997

Journal Title

Discrete and Continuous Dynamical Systems

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