Hyperbolic Chain Control Sets on Flag Manifolds
  In this paper we study the chain control sets of right-invariant control systems on the flag manifolds of a non-compact semisimple Lie group. We prove that each chain control set is partially (skew-) hyperbolic over the associated control flow. Moreover, we characterize those chain control sets that are uniformly (skew-) hyperbolic in terms of the flag type of the control flow. 
Adriano Da Silva and Christoph Kawan
math.OC math.DS