Positive periodic solutions of Nicholson-type delay systems with nonlinear density-dependent mortality terms (Q1938309)
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scientific article; zbMATH DE number 6134174
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| English | Positive periodic solutions of Nicholson-type delay systems with nonlinear density-dependent mortality terms |
scientific article; zbMATH DE number 6134174 |
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Positive periodic solutions of Nicholson-type delay systems with nonlinear density-dependent mortality terms (English)
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4 February 2013
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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.
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