Prescribed performance synchronization for fractional-order chaotic systems
Liu Henga),b), Li Sheng-Gang†a), Sun Ye-Guob), Wang Hong-Xingb)
       
Control inputs and zi ( t ), i = 1,2,3. (a) u 1( t ), (b) u 2( t ), (c) u 3( t ), and (d) zi ( t ), i = 1,2,3.