“…Compared with smooth control methods, the closed-loop systems under nonsmooth control law usually demonstrates faster convergence rate, higher control precision as well as better disturbance rejection properties [12,29]. In view of these advantages, nonsmooth control methods have recently received a lot of attentions [7,11,12,18], and have been successfully used in practical systems [3,5,6,7,8,9,24,26,27,28,31]. Recently, the definition of finite-time stability and the finite-time stability theorem for SNS were proposed in [36].…”