Properties of the set of “trajectory-control” pairs of a control systemwith subdifferential operators |
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Authors: | A A Tolstonogov |
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Institution: | 1.Institute for System Dynamics and Control Theory,Siberian Branch of the Russian Academy of Sciences,Irkutsk,Russia |
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Abstract: | We consider a control system described by an evolution equation with control constraint which is a multivalued mapping of
a phase variable with closed nonconvex values. One of the evolution operators of the system is the subdifferential of a time-dependent
proper, convex, and lower semicontinuous function. The other operator, acting on the derivative of the required functions,
is the subdifferential of a convex continuous function. We also consider systems with the following control constraints: multivalued
mappings whose values are the closed convex hulls of the values of the original constraint and multivalued mapping whose values
are the extreme points of the convexified constraint that belong to the original one. We study topological properties of the
sets of admissible “trajectory–control” pairs of the system with various control constraints and clarify the relations between
them. An example of a parabolic system with hysteresis and diffusion phenomena is considered in detail. Bibliography: 19 titles. |
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