A novel Lyapunov functional for stability of time-varying delay systems via matrix-refined-function

This paper is concerned with the development of novel stability criteria for time-varying delayed systems. To this end, a new function which consisted of two quadratic functions with a special structural matrix is established to be a Lyapunov functional candidate. The proposed Lyapunov functional plays key role to decrease the conservatism of derived conditions which is verified by three numerical examples. (C) 2017 Elsevier Ltd. All rights reserved.