Abstract
In this paper we obtain the exact controllability for wave equations with an equivalued boundary on a “hole” in a bounded domain, and prove that when the “hole” shrinks to a point, the HUM solutions converge in a suitable sense.
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In this paper we obtain the exact controllability for wave equations with an equivalued boundary on a “hole” in a bounded domain, and prove that when the “hole” shrinks to a point, the HUM solutions converge in a suitable sense.