1996 年 35 巻 12 号 p. 915-922
The class of well-posed infinite-dimensional linear systems considered in this paper was introduced by Salamon and Weiss in the 80's. The aim was to provide an axiomatic framework to formulate and solve control problems for systems described by delay and partial differential equations. In this article, this class and its system theoretic properties are described, and an overview of applications of this approach to solving a variety of control problems is given.