Subsolutions: A journey from positone to infinite semipositone problems

We discuss the existence of positive solutions to $-Delta u=lambda f(u)$ in $Omega$, with $u=0$ on the boundary, where $lambda$ is a positive parameter, $Omega$ is a bounded domain with smooth boundary $Delta $ is the Laplacian operator, and $f:(0,infty)o R$ is a continuous function. We first d...

Full description

Bibliographic Details
Main Authors: Eun Kyoung Lee, Ratnasingham Shivaji, Jinglong Ye
Format: Article
Language:English
Published: Texas State University 2009-04-01
Series:Electronic Journal of Differential Equations
Subjects:
Online Access:http://ejde.math.txstate.edu/conf-proc/17/l1/abstr.html