J. Korean Math. Soc. 2003; 40(5): 769-788
Printed September 1, 2003
Copyright © The Korean Mathematical Society.
Jong Yeoul Park and Sun Hye Park
Pusan National University
In this paper, we study the optimal control for the damped semilinear hyperbolic systems with unknown parameters $$(C(t)y')'+A_2(t,q)y'+A_1(t,q)y=f(t,q,y,u).$$ We will prove the existence of weak solution of this system and is to find the optimal control pair $(\bar{q},\bar{u})\in Q_{\tau}\times {\mathcal U}_{ad}$ such that $\inf_{u\in {\mathcal U}_{ad}}\sup_{q\in Q_{\tau}}J(q,u)=J(\bar{q},\bar{u}).$
Keywords: optimal control, semilinear hyperbolic systems, cost functional, sufficient conditions
MSC numbers: 49J20, 49J35
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