a.h Borzabadi - School of Mathematics and Computer Science, Damghan University, Damghan, Iran.
s Mirassadi - School of Mathematics and Computer Science, Damghan University, Damghan, Iran.
m Heidari - School of Mathematics and Computer Science, Damghan University, Damghan, Iran.

In this paper, a novel hybrid iterative scheme to find approximate optimal distributed control governed by wave equations is considered. A partition of the time-control space is considered and the discrete form of the problem is converted to a quasi assignment problem. Then a population based algorithm, with a finite difference method, is applied to extract approximate optimal distributed control as a piecewise linear function. A convergence analysis is proposed for discretized form of the original problem. Numerical computations are given to show the profciency of the proposed algorithm and the obtained results applying two popular evolutionary algorithms, genetic and particle swarm optimization algorithms.

Optimal control problem; Evolutionary algorithm; Finite di erence method; Wave equation