Computation of the zeros of linear multivariable systems

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Abstract
The various subsets of the entire set of system zeros are unambiguously characterized in a manner which permits the definitive computation of the sets of centralized transmission and decoupling zeros by solving appropriate generalized eigenvalue problems using widely available ‘ expertly written ’ software embodying powerful QZ techniques, Furthermore, it is indicated that the present method is immediately applicable to the computation of the sets of decentralized fixed modes and decentralized transmission zeros with respect to any set of decentralized controllers.