Some New Existence Results for Positive Periodic Solutions to First-Order Neutral Differential Equations with Variable Coefficients

Lingping Zhang and Bo Du ()
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Lingping Zhang: School of Mathematics and Statistics, Huaiyin Normal University, Huaian 223300, China
Bo Du: School of Mathematics and Statistics, Huaiyin Normal University, Huaian 223300, China

Mathematics, 2022, vol. 10, issue 20, 1-9

Abstract: In this article, we deal with some new existence results for positive periodic solutions for a class of neutral functional differential equations by employing Krasnoselskii’s fixed-point theorem and the properties of a neutral operator. Our results generalize corresponding works from the past. An example is given to show the feasibility and application of the obtained results.

Keywords: first-order; fixed point theorem; existence; positive periodic solution (search for similar items in EconPapers)
JEL-codes: C (search for similar items in EconPapers)
Date: 2022
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