| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 9498386 | Linear Algebra and its Applications | 2005 | 9 Pages |
Abstract
An open question in Control Theory over commutative rings is: When does dynamic feedback equivalence imply (static) feedback equivalence? A second open problem is: Given a linear system Σ = (A, B), when does there exist a matrix F such that A + BF is invertible? In this paper we solve both questions, obtaining two characterizations of stable rings.
Related Topics
Physical Sciences and Engineering
Mathematics
Algebra and Number Theory
Authors
J.A. Hermida Alonso, M.M. López-Cabeceira, M.T. Trobajo,