Stability switching and Hopf bifurcation in a multiple-delayed neural network with distributed delay

JOURNAL OF MATHEMATICAL ANALYSIS AND APPLICATIONS

卷:407

Article

Ncube, Israel

关键词: Neural network;    Delay differential equations;    Symmetry;    Discrete delay;    Distributed delay;    Characteristic equation;    Absolute stability;    Hopf bifurcation;   

DOI  :  10.1016/j.jmaa.2013.05.021

来源: Elsevier

【 摘 要 】

We consider a network of three identical neurons incorporating distributed and discrete signal transmission delays. The model for such a network is a system of coupled nonlinear delay differential equations. It is established that two cases of a single Hopf bifurcation may occur at the trivial equilibrium of the system, as a consequence of the D-3 symmetry of the network. These single Hopf bifurcations are the simple and the double root. The present paper looks at the simple root case, and addresses the issue of absolute stability of the trivial equilibrium and stability switching, leading up to calculation of the critical delay and formulation of a Hopf bifurcation theorem. (C) 2013 Elsevier Inc. All rights reserved.

【 授权许可】

Free