Impulsive control systems. - Approximation of optimal control problems with state constraints: Estimates and applications. - Discrete approximations in optimal control. - The maximum principle in optimal control of systems governed by semilinear equations. - On controlled invariance for a simple class of distributions with singularities. - Dynamic feedback stabilization. - to a paper of M. Z. Shapiro: Homotopy theory in control. - Optimization and finite difference approximations of nonconvex differential inclusions with free time. - Small-time reachable sets and time-optimal feedback control. - Higher order variations: How can they be defined in order to have good properties?. - Well posed optimal control problems: A perturbation approach. Language: English