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Approximate controllability and approximate null controllability of semilinear systems
The approximate controllability and approximate null controllability of control
systems governed by a class of abstract semilinear integrodifferential equations are
discussed in this paper. Sufficient conditions for approximate controllability and
approximate null controllability are obtained providing the approximate
controllability and exact null controllability of the corresponding linear systems
respectively. Finally, some examples are given to illustrate the application of the
sufficient conditions.