A topological approach to the existence of solutions for nonlinear differential equations with piecewise constant argument

Zhenkun Huang, Xinghua Wang and Yonghui Xia

Chaos, Solitons & Fractals, 2009, vol. 39, issue 3, 1121-1131

Abstract: In this paper, we investigate qualitative behavior of nonlinear differential equations with piecewise constant argument (PCA). A topological approach of Ważewski-type which gives sufficient conditions to guarantee that the graph of at least one solution stays in a given domain is formulated. Moreover, our results are also suitable for a class of general system of discrete equations. By using a regular polyfacial set, we apply our developed topological approach to cellular neural networks (CNNs) with PCA. Some new results are attained to reveal dynamic behavior of CNNs with PCA and discrete-time CNNs. Finally, an illustrative example of CNNs with PCA shows usefulness and effectiveness of our results.

Date: 2009
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Persistent link: https://EconPapers.repec.org/RePEc:eee:chsofr:v:39:y:2009:i:3:p:1121-1131

DOI: 10.1016/j.chaos.2007.04.029

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