In this paper, we investigate the exact number of positive solutions of the Dirichlet boundary-value problem u″ - u-γ + β = 0. We will show that the exact number of positive solutions can be 2, 1, 0, depending on the length of the interval and γ. This solves some open problems posed in .
|Number of pages||10|
|Journal||Differential and Integral Equations|
|Publication status||Published - Jul 1 2009|
ASJC Scopus subject areas
- Applied Mathematics