SIAM Journal on Control and Optimization, Vol.48, No.2, 521-550, 2009
ANALYSIS OF THE HUM CONTROL OPERATOR AND EXACT CONTROLLABILITY FOR SEMILINEAR WAVES IN UNIFORM TIME
We present a regularity result for the HUM optimal control associated with the interior control of linear waves. We use this analysis, together with Strichartz inequalities, to get results on the exact controllability for subcritical nonlinear waves in a bounded domain of R(3).