有限维空间中的二阶非自治退化多值微分系统

A Nonautonomous Degenerate Multivalued Differential Systems on Finite-Dimensional Spaces

本文利用集值映射的性质证明了一类有限维空间上的二阶非自治退化多值可微系统的（强）解的存在性

In this paper, the existence of solutions to a class of 2nd order nonautonomous degenerate multivalued differential systems on finite-dimensional spaces is established by means of properties of set-valued mappings.