通过构造适当的Lyapunov泛函 ,巧妙引入参数q ij,r ij,qij,rij∈R和wi>0(i,j=1 ,2 ,… ,n) ,并结合不等式 2ab≤a2 +b2 分析技巧 ,讨论了一类时延细胞神经网络 (DCNNs)的全局指数稳定性和周期解的存在性 ,给出了一系列充分准则 .最后 ,给出了说明这一理论的两个实例 By constructing the appropriate Lyapunov functional, the parameters q ij, r ij, qij, rij∈R and wi> 0 (i, j = 1, 2, ..., n) are introduced skillfully and combined with the inequality 2ab≤a2 + b2 , The global exponential stability and the existence of periodic solutions for a class of delayed cellular neural networks (DCNNs) are discussed, and a series of sufficient criteria are given. Finally, two examples are given to illustrate this theory