Synchronization of delayed memristive neural networks by establishing novel Lyapunov functional

This paper inquires into the synchronization for delayed chaotic memristive neural networks. First, a novel criterion is proposed to determine whether a quadratic function is negative or not on a closed interval without regard for its convexity or concavity. Then, a novel Lyapunov functional is established which is based on Chen et al.'s integral inequalities. Next, by applying Moon et al.'s inequality, Chen et al.'s integral inequalities, linear convex combination technique and the novel criterion, two novel delay-dependent criteria are presented to realize the global asymptotical synchronization for the chaotic memristive neural networks. Finally, an example is given out to explain the effectiveness of the theoretical results. (C) 2019 Elsevier B.V. All rights reserved.