A new four-dimensional chaotic system with first Lyapunov exponent of about 22, hyperbolic curve and circular paraboloid types of equilibria and its switching synchronization by an adaptive global integral sliding mode control
Prakash Singh Jay1, †, Krishna Roy Binoy1, Wei Zhouchao2
       

(color online) Behavior of the global sliding surfaces for the synchronization of system (16) and system (17).