  We establish existence, approximate controllability and optimal control of a
class of impulsive non-local non-linear fractional dynamical systems in Banach
spaces. We use fractional calculus, sectorial operators and Krasnoselskii fixed
point theorems for the main results. Approximate controllability results are
discussed with respect to the inhomogeneous non-linear part. Moreover, we prove
existence results of optimal pairs of corresponding fractional control systems
with a Bolza cost functional.
