On optimal control in the problem of long-run tracking the exponential Ornstein—Uhlenbeck process

We consider a problem of optimal tracking the exponential Ornstein—Uhlenbeck process. By change of variables, the linear-quadratic control system with discounting has been transformed into linear inhomogeneous system with random coefficients. For such a system, we obtain an optimal control law over an infinite time-horizon. The results are applied to derive an optimal control in the tracking problem with respect to criteria of long-term losses per unit of accumulated discount.