On an Optimal Control Problem for the Wave Equation in One Space Dimension Controlled by Third Type Boundary Data
In the present paper we study the boundary control by the third boundary condition on the left end of a string, the right end being fixed. An optimality criterion based on the minimization of an integral of a linear combination of the control itself and its antiderivative raised to an arbitrary power p≥1 is established. A method is developed permitting one to find a control satisfying this optimality criterion and write it out in the explicit form. The optimal control for p>1 is proved. Thereby proposed optimality criterion uniquely determines the optimal solution of boundary control problem under consideration.