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In a previous work we improved some earlier results of Imanuvilov, Li and Zhang, and of Zuazua, on the boundary exact controllability of semilinear wave equations by weakening the growth assumptions on the nonlinearity. Answering a question of Zuazua we give a still weaker, essentially optimal condition. Furthermore, we establish an approximate internal controllability result under the same growth assumptions.
Słowa kluczowe
Czasopismo
Rocznik
Tom
Strony
449--461
Opis fizyczny
Bibliogr. 5 poz.,
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Bibliografia
Typ dokumentu
Bibliografia
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bwmeta1.element.baztech-article-BAT2-0001-0292