1976
- ▪E.D. Sontag, "On finitely accessible and finitely observable rings", J. Pure Appl. Algebra, vol. 8, no. 1, pp. 97–104, 1976. pdf
Abstract
Two classes of rings which occur in linear system theory are introduced and compared. Characterizations of one of them are given in terms, of integral extensions (every finite extension of R is integral) and Cayley–Hamilton type matrix condition. A comparison is made in the case of no zero-divisors with Ore domains.