On a multi-valued differential equation: An existence theorem
Toru Maruyama · Proceedings of the Japan Academy Series A Mathematical Sciences · 1984
1o Introduction.Let ) be a real Hilbert space of finite dimen- sion and a correspondence (= multi-valued mapping) is assumed to be given.The compact interval [0, T] is endowed with the usual Lebesgue measure dt.In this paper, we shall establish a sufficient condition which assures the existence o solutions of a multi- valued differential equation o the torm"