Predefined-time synchronization of different dimensional fractional-order chaotic systems

This paper studies predefined-time synchronization of different dimensional fractional-order chaotic systems. Based on Lyapunov stability theory and the definition of predefined-time stability, some sufficient conditions are given to achieve predefined-time synchronization of different dimensional fractional-order chaotic systems by designing a new feedback controller. Compared with some previous finite-time and fixed-time synchronization results, our results are more general. The validity of the results is verified by numerical simulations.