Positive Periodic Solutions of Nicholson-Type Delay Systems with Nonlinear Density-Dependent Mortality Terms

This paper is concerned with the periodic solutions for a class of Nicholson-type delay systems with nonlinear density-dependent mortality terms. By using coincidence degree theory, some criteria are obtained to guarantee the existence of positive periodic solutions of the model. Moreover, an exampl...

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Bibliographic Details
Published in:Abstract and Applied Analysis 2012-01, Vol.2012 (1), p.1256-1268-685
Main Authors: Chen, Wei, Wang, Lijuan
Format: Article
Language:English
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Summary:This paper is concerned with the periodic solutions for a class of Nicholson-type delay systems with nonlinear density-dependent mortality terms. By using coincidence degree theory, some criteria are obtained to guarantee the existence of positive periodic solutions of the model. Moreover, an example and a numerical simulation are given to illustrate our main results.
ISSN:1085-3375
1687-0409
DOI:10.1155/2012/843178