This survey note describes a new type of distributed parameter control systems—the two-point boundary value problems for infinite-dimensional dynamical systems, particularly, for hyperbolic systems of partial differential equations of second order, some of the discoveries that have been done about it and some unresolved questions.
De-Xing Kong. Fa Wu. "A New Type of Distributed Parameter Control Systems: Two-Point Boundary Value Problems for Infinite-Dimensional Dynamical Systems." J. Appl. Math. 2013 (SI19) 1 - 3, 2013. https://doi.org/10.1155/2013/454857