Hostname: page-component-76fb5796d-22dnz Total loading time: 0 Render date: 2024-04-25T17:36:58.970Z Has data issue: false hasContentIssue false

Existence of positive solutions for a class of p-Laplacian superlinear semipositone problems

Published online by Cambridge University Press:  21 July 2015

M. Chhetri
Affiliation:
Department of Mathematics and Statistics, The University of North Carolina at Greensboro, Greensboro, NC 27402, USA, (maya@uncg.edu)
P. Drábek
Affiliation:
KMA-FAV, Západočeská Univerzita v Plzni, Univerzitní 22, 30614 Plzeň, Czech Republic, (pdrabek@kma.zcu.cz)
R. Shivaji
Affiliation:
Department of Mathematics and Statistics, The University of North Carolina at Greensboro, Greensboro, NC 27402, USA, (shivaji@uncg.edu)

Abstract

We consider a quasilinear elliptic problem of the form

where λ > 0 is a parameter, 1 < p < 2 and Ω is a strictly convex bounded domain in ℝN, N > p, with C2 boundary ∂Ω. The nonlinearity f : [0, ∞) → ℝ is a continuous function that is semipositone (f(0) < 0) and p-superlinear at infinity. Using degree theory, combined with a rescaling argument and uniform La priori bound, we establish the existence of a positive solution for λ small. Moreover, we show that there exists a connected component of positive solutions bifurcating from infinity at λ = 0. We also extend our study to systems.

Type
Research Article
Copyright
Copyright © Royal Society of Edinburgh 2015 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)