Boundary trajectories of systems with unbounded controls
Date of Original Version
For a nonsmooth control system, with possibly unbounded sets of velocities and controls, we give a first-order necessary condition for the problem of reaching the boundary of the attainable set. The condition is a relaxed version of the maximum principle. We give an example which demonstrates that, in some cases, the theorem proved in this paper is stronger than all other versions of the maximum principle. © 1991 Plenum Publishing Corporation.
Journal of Optimization Theory and Applications
Kaskosz, B., and S. Łojasiewicz. "Boundary trajectories of systems with unbounded controls." Journal of Optimization Theory and Applications 70, 3 (1991): 539-559. doi:10.1007/BF00941301.