Multiple positive solutions for singular
✍
Giovanna Cerami; Riccardo Molle
📂
Article
📅
2003
🏛
Elsevier Science
🌐
English
⚖ 149 KB
The equation -ε 2 u + a ε (x)u = u p-1 with boundary Dirichlet zero data is considered in an exterior domain = R N \ ω (ω bounded and N 2). Under the assumption that a ε a 0 > 0 concentrates round a point of as ε → 0, that p > 2 and p < 2N/(N -2) when N 3, the existence of at least three positive di