Lectures on algebraic system theory: Linear systems over rings
Edward W. Kamen · NASA STI Repository (National Aeronautics and Space Administration) · 1978
The presentation centers on four classes of systems that can be treated as linear systems over a ring. These are: (1) discrete-time systems over a ring of scalars such as the integers; (2) continuous-time systems containing time delays; (3) large-scale discrete-time systems; and (4) time-varying discrete-time systems.