International Journal of Mathematics and Mathematical Sciences 
Volume 2003 (2003), Issue 27, Pages 1703-1714
doi:10.1155/S0161171203209273

Duality in the optimal control for damped hyperbolic systems with positive control

Mi Jin Lee,1 Jong Yeoul Park,1 and Young Chel Kwon2

 1Department of Mathematics, Pusan National University (PNU), Pusan 609–735, Korea
2Department of Mathematics, Dong-A University, Pusan 604–714, Korea
Received 10 September 2002

Abstract

We study the duality theory for damped hyperbolic equations. These systems have positive controls and convex cost functionals. Our main results lie in the application of duality theorem, that is, inf J=sup K, on various cost functions.