Surveys in Mathematics and its Applications

ISSN 1842-6298 (electronic), 1843-7265 (print)
Volume 5 (2010), 1 -- 16


Chuanzhi Bai and Chunhong Li

Abstract. In this paper, a Hopfield neural network with neutral time-varying delays is investigated by using the continuation theorem of Mawhin's coincidence degree theory and some analysis technique. Without assuming the continuous differentiability of time-varying delays, sufficient conditions for the existence of the periodic solutions are given. The result of this paper is new and extends previous known result.

2000 Mathematics Subject Classification: 34K13; 92B20
Keywords: Hopfield neural networks; Neutral delay; Coincidence degree theory; Periodic solution

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Chuanzhi Bai Chunhong Li
Department of Mathematics, Department of Mathematics,
Huaiyin Normal University, Huaiyin Normal University,
Huaian, Jiangsu 223300, P. R. China. Huaian, Jiangsu 223300, P. R. China.
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