New decoupling invariants: the essential orders
Christian Commault, J. Descusse, Jean‐Michel Dion, J.F. Lafay, M. Malabre · International Journal of Control · 1986
The aim of this paper is to introduce a new list of integers which is invariant under the action of biproper compensation and which plays a key role in the solution of the row-by-row decoupling problem. Several equivalent characterizations are provided within both the geometric and the transfer matrix approaches.