“…Over the past decades, great progress has been made in various areas of optimal control problems described by ordinary [1,2,4,7,9,10,14,19,21,23,25,30,31,33,34,37,40] and partial differential equations/inclusions [3, 5, 11-13, 16, 18, 20, 22, 29, 32, 36, 39, 41]. The work [6] investigates boundary value problems for systems of Hamilton-Jacobi-Bellman first-order partial differential equations and variational inequalities, the solutions of which obey the viability constraints.…”