摘要： In this paper,the periodic viable trajectories of differential inclusions are discussed.Firstly,a simplified property of differential inclusions is given. Then,an existence theorem of periodic viable trajectories of differential inclu sions in a finite dimensional space is proved.With the above results and Galerkin.s approximation,an existence theorem of periodic viable trajectories of partial differential inclusions in a Hilbert space is proved.

中图分类号: 

• O177.5