generalized chaos control and synchronization by nonlinear high-order approach

this paper investigates the generalized control and synchronization of chaotic dynamical systems. first, we show that it is possible to stabilize the unstable periodic orbits (upos) when we use a high-order derivation of the ogy control that is known as one of useful methods for controlling chaotic systems. then we examine synchronization of identical chaotic systems coupled in a master/slave manner. a rigorous criterion based on the transverse stability is presented which, if satisfied, guarantees that synchronization is asymptotically stable. the rössler attractor and chen system are used as examples to demonstrate the effectiveness of the developed approach and the improvement over some existing results.