Almost periodic solutions of memristive multidirectional associative memory neural networks with mixed time delays  

作　　者：Yan Zhang Yuanhua Qiao Lijuan Duan 

机构地区：[1]Faculty of Science,Beijing University of Technology Beijing 100124,P.R.China [2]Faculty of Information Technology,Beijing University of Technology Beijing 100124,P.R.China

出　　处：《International Journal of Biomathematics》2024年第2期113-138,共26页生物数学学报（英文版）

基　　金：supported by the Beijing Municipal Natural Science Foundation(No.4202025);partially sponsored by the National Natural Science Foundation of China(No.61672070);the Beijing Municipal Education Commission(No.KZ201910005008).

摘　　要：Traditional biological neural networks cannot simulate the real situation of the abrupt synaptic connections between neurons while modeling associative memory of human brains.In this paper,the memristive multidirectional associative memory neural networks(MAMNNs)with mixed time-varying delays are investigated in the sense of Filippov solution.First,three steps are given to prove the existence of the almost periodic solution.Two new lemmas are proposed to prove the boundness of the solution and the asymptotical almost periodicity of the solution by constructing Lyapunov function.Second,the uniqueness and global exponential stability of the almost periodic solution of memristive MAMNNs are investigated by a new Lyapunov function.The sufficient conditions guaranteeing the properties of almost periodic solution are derived based on the relevant definitions,Halanay inequality and Lyapunov function.The investigation is an extension of the research on the periodic solution and almost periodic solution of bidirectional associative memory neural networks.Finally,numerical examples with simulations are presented to show the validity of the main results.

关 键 词：Almost periodic solutions memristive multidirectional associative memory neural networks mixed time-varying delays global exponential stability 

分 类 号：O17[理学—数学]