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H. H. Rosenbrock, “Comments on Poles and Zeros of Linear Multivariable Systems: A Survey of the Algebraic Geometric and Complex Variable Theory,” International Journal on Control, Vol. 26, No. 1, 1977, pp. 157-161.

has been cited by the following article:

• TITLE: Decoupling Zeros of Positive Discrete-Time Linear Sys-tems

  AUTHORS: Tadeusz Kaczorek

  KEYWORDS: Input-Decoupling Zeros, Output-Decoupling Zeros, Input-Output Decoupling Zeros, Positive, Discrete-Time, Linear, System

  JOURNAL NAME: Circuits and Systems, Vol.1 No.2, October 26, 2010

  ABSTRACT: The notions of decoupling zeros of positive discrete-time linear systems are introduced. The relationships between the decoupling zeros of standard and positive discrete-time linear systems are analyzed. It is shown that: 1) if the positive system has decoupling zeros then the corresponding standard system has also decoupling zeros, 2) the positive system may not have decoupling zeros when the corresponding standard system has decoupling zeros, 3) the positive and standard systems have the same decoupling zeros if the rank of reachability (observability) matrix is equal to the number of linearly independent monomial columns (rows) and some additional assumptions are satisfied.