Prefer a chat interface with context about you and your work?
Existence and localization of solutions of second order elliptic problems using lower and upper solutions in the reversed order
where Ω is a bounded domain in R ,L is a linear second order elliptic operator for which the maximum principle holds, B is a linear first order boundary operator and f is a nonlinear Caratheodory function. We are concerned with the solvability of (1.1) in presence of lower and …