Tracking control of a vibrating string with an interior mass viewed as delay system
H. Mounier, J. Rudolph, M. Fliess, P. Rouchon (1998)
ESAIM: Control, Optimisation and Calculus of Variations
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H. Mounier, J. Rudolph, M. Fliess, P. Rouchon (1998)
ESAIM: Control, Optimisation and Calculus of Variations
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M. Fliess, H. Mounier (2010)
ESAIM: Control, Optimisation and Calculus of Variations
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Interpretations of most existing controllability and observability notions for linear delay systems are given. Module theoretic characterizations are presented. This setting enables a clear and precise comparison of the various examined notions. A new notion of controllability is introduced, which is called pi-freeness.