文摘
For hybrid discrete-continuous linear nonstationary systems, we introduce the notion of an s-state by minimal information. This permits one to suggest a common approach to the statement of a controllability problem for such systems in the sense of controllability of their states. We construct dual observation systems and justify the principle of duality between controllability and observability problems. As an example, we study the solvability of the problem of a strict complete controllability for the case in which the discrete component of a state is described by a stationary equation.