Existence of positive periodic solutions
β
Yan Luo; Weibing Wang; Jianhua Shen
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Article
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2008
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Elsevier Science
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English
β 203 KB
In this work, we deal with a new existence theory for positive periodic solutions for two kinds of neutral functional differential equations by employing the Krasnoselskii fixed-point theorem. Applying our results to various mathematical models we improve some previous results.