Prefer a chat interface with context about you and your work?
A version of Krasnosel'skiĭ's compression-expansion fixed point theorem in cones for discontinuous operators with applications
We introduce a new fixed point theorem of Krasnosel'skiĭ type for discontinuous operators. As an application we use it to study the existence of positive solutions of a second-order differential problem with separated boundary conditions and discontinuous nonlinearities.