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Commandabilité, matrices de transfert et modes cachés. (Controllability, transfer matrices and hidden modes). (French, English) Zbl 0685.93009
Summary: The controllability of a constant linear system defined by arbitrary equations is shown to be equivalent to the possibility of determining its input-output behaviour by a transfer matrix. An elementary “geometric” definition is deduced for hidden modes, or decoupling zeros.

MSC:
93B05 Controllability
93B15 Realizations from input-output data
93C05 Linear systems in control theory
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