A general stochastic fixed point theorem for continuous random operators with stochastic domains

Author: Heinz W. Engl

Abstract: We prove that under certain conditions a continuous random operator with stochastic domain has a random fixed point provided that each realization has a (deterministic) fixed point. As a by-product we obtain a selection theorem for the interior of certain convex-valued measurable correspondences. We apply our results to obtain stochastic Kransnoselski- and Rothe-type theorems and existence for random differential and integral equations.