Applied Mathematics and Mechanics (English Edition) ›› 2005, Vol. 26 ›› Issue (2): 210-217 .

• 论文 • 上一篇    下一篇

BIFURCATION IN A TWO-DIMENSIONAL NEURAL NETWORK MODEL WITH DELAY

魏俊杰, 张春蕊, 李秀玲   

  • 收稿日期:2003-05-20 修回日期:2004-09-24 出版日期:2005-02-18 发布日期:2005-02-18
  • 通讯作者: 魏俊杰

BIFURCATION IN A TWO-DIMENSIONAL NEURAL NETWORK MODEL WITH DELAY

WEI Jun-jie, ZHANG Chun-rui, LI Xiu-ling   

    1. Department of Mathematics, Harbin Institute of Technology, Harbin 150001, P.R.China;
    2. Key Laboratory of Forestry Plant Ecology of Ministry of Education,
      Northeast Forestry University, Harbin 150040, P.R.China;
    3. Department of Basic Science and Art, Changchun Taxation College,
      Changchun 130022, P.R.China
  • Received:2003-05-20 Revised:2004-09-24 Online:2005-02-18 Published:2005-02-18
  • Contact: WEI Jun-jie

Abstract: A kind of 2-dimensional neural network model with delay is considered. By analyzing the distribution of the roots of the characteristic equation associated with the model, a bifurcation diagram was drawn in an appropriate parameter plane. It is found that a line is a pitchfork bifurcation curve. Further more, the stability of each fixed point and existence of Hopf bifurcation were obtained. Finally, the direction of the Hopf bifurcation and the stability of the bifurcating periodic solutions were determined by using the normal form method and centre manifold theory.

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