Controllability of Non-densely Defined Neutral Functional Differential Systems in Abstract Space*.

In this paper, by means of Sadovskii fixed point theorem, the authors establish a result concerning the controllability for a class of abstract neutral functional differential systems where the linear part is non-densely defined and satisfies the Hille-Yosida condition. As an application, an example is provided to illustrate the obtained result. [ABSTRACT FROM AUTHOR]