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\iteman{io-port 04062914}
\itemau{Triggiani, R.}
\itemti{Exact controllability for wave equation with Neumann boundary control.}
\itemso{Boundary control and boundary variations, Proc. IFIP WG 7.2 Conf., Nice/France 1987, Lect. Notes Control Inf. Sci. 100, 317-371 (1988).}
\itemab
[For the entire collection see Zbl 0634.00013.] The author proves a number of results on exact controllability for the wave equation with Neumann boundary control. Since exact controllability is equivalent to the surjectivity of the input $\to$ solution operator (denoted, say, by L), the technique is to prove that $L\sp*$ has a continuous inverse. As the author says in the introduction, the results of this paper are part of joint work with I. Lasiecka and J. L. Lions.
\itemrv{O.C\^arj\u{a}}
\itemcc{}
\itemut{exact controllability; wave equation; Neumann boundary control}
\itemli{}
\end