Solution of an Optimal Control Problem for Helmholtz Equations with m- Point Nonlocal Boundary Conditions by Means Mathcad

The paper deals with optimal control problems whose behavior is described by Helmholtz equation with Bitsadze-Samarski m-point nonlocal boundary conditions. The theorem about a necessary and sufficient optimality condition is given. A numerical method of the solution of an optimal problem by means of the Mathcad package is presented.