INCLUSION PRINCIPLE FOR DISCRETE-TIME TIME-VARYING SYSTEMS

In this paper the concept of inclusion is applied to dynamic linear discrete-time time-varying dynamic systems. Starting from general definitions, which include restriction and aggregation as special cases, inclusion conditions are derived. It is proved that any inclusion can be considered as a specific composition of sequences of restriction/ aggregation pairs. The paper contains also a formulation of the contractibility conditions for implementation of time-varying state-feedback controllers.

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