Global exponential stability of recurrent neural networks with time-varying delays in the presence of strong external stimuli

  • Authors:
  • Zhigang Zeng;Jun Wang

  • Affiliations:
  • School of Automation, Wuhan University of Technology, Wuhan, Hubei 430070, China and Department of Automation and Computer-Aided Engineering, The Chinese University of Hong Kong, Shatin, New Terri ...;Department of Automation and Computer-Aided Engineering, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong

  • Venue:
  • Neural Networks
  • Year:
  • 2006

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Abstract

This paper presents new theoretical results on the global exponential stability of recurrent neural networks with bounded activation functions and bounded time-varying delays in the presence of strong external stimuli. It is shown that the Cohen-Grossberg neural network is globally exponentially stable, if the absolute value of the input vector exceeds a criterion. As special cases, the Hopfield neural network and the cellular neural network are examined in detail. In addition, it is shown that criteria herein, if partially satisfied, can still be used in combination with existing stability conditions. Simulation results are also discussed in two illustrative examples.