Linear feedback systems, for which the return difference T is a C0 operator are studied. It is shown that if T is essentially unitary then such a system is well posed and stable. All strictly causal C0 operators for which I-T*T is compact are characterized.
|Number of pages||6|
|Journal||Mathematical Systems Theory|
|State||Published - 1 Dec 1977|
ASJC Scopus subject areas
- Theoretical Computer Science
- Mathematics (all)
- Computational Theory and Mathematics