Fixed points and controllability in delay systems.
Flow problems and duality.
Forward invariant sets, homogeneity and small-time local controllability
The property of forward invariance of a subset of with respect to a differential inclusion is characterized by using the notion of a perpendicular to a set. The obtained results are applied for investigating the dependence of the small-time local controllability of a homogeneous control system on parameters.
Functional viability theorems for differential inclusions with memory
Fundamental theorem of state feedback: The case of infinite poles