Global O(t-α) stability and global asymptotical periodicity for a non-autonomous fractional-order neural networks with time-varying delays

被引:47
作者
Chen, Boshan [1 ]
Chen, Jiejie [1 ,2 ,3 ]
机构
[1] Hubei Normal Univ, Coll Math & Stat, Huangshi 435002, Hubei, Peoples R China
[2] Huazhong Univ Sci & Technol, Sch Automat, Wuhan 430074, Peoples R China
[3] Minist China, Key Lab Image Proc & Intelligent Control Educ, Wuhan 430074, Peoples R China
关键词
Fractional-order neural networks; Time-varying delays; Global O(t(-alpha)) stability; S-asymptotically periodic solution; Globally S-asymptotic periodicity; EXPONENTIAL STABILITY; DIFFERENTIAL-EQUATIONS; CHAOS; EXISTENCE; SYNCHRONIZATION; DYNAMICS; CALCULUS; SYSTEMS;
D O I
10.1016/j.neunet.2015.09.007
中图分类号
TP18 [人工智能理论];
学科分类号
081104 ; 0812 ; 0835 ; 1405 ;
摘要
The present paper studies global O(t(-alpha)) stability and global asymptotical periodicity for a non-autonomous fractional-order neural networks with time-varying delays (FDNN). Firstly, some sufficient conditions are established to ensure that a non-autonomous FDNN is global O(t(-alpha)) stable based on a new Lyapunov function method and Leibniz rule for fractional differentiation. Next it is shown that the periodic or autonomous FDNN cannot generate exactly nonconstant periodic solution under any circumstances. Finally, we show that all solutions converge to a same periodic function for a periodic FDNN by using a fractional-order differential inequality technique. Our issues, methods and results are all new. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码:47 / 57
页数:11
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