existence and nonexistence results for quasilinear semipositone dirichlet problems
;Matthew Rudd
icsoft 2006 - 1st international conference on software and data technologies, proceedings2009Vol. 2009pp. 207-212
99
rudd2009electronicexistence
Abstract
We use the sub/supersolution method to analyze a semipositone Dirichlet problem for the p-Laplacian. To find a positive solution, we therefore focus on a related problem that produces positive subsolutions. We establish a new nonexistence result for this subsolution problem on general domains, discuss the existence of positive radial subsolutions on balls, and then apply our results to problems involving particular semipositone nonlinearities.