Complex transient dynamics of hidden attractors in a simple 4D system*
Dang Xiao-Yua), Li Chun-Biaob), Bao Bo-Chengc)†, Wu Hua-Gand)
       
Unstable sinks, where the trajectory of z tends to be infinite with the time evolution: (a), (b) time-domain waveforms of four state variables; (c) corresponding trajectory in the x – y – z space.