Positive periodic solution of second-order neutral functional differential equations |
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| Authors: | Wing-Sum Cheung Jingli Ren |
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| Institution: | a Department of Mathematics, The University of Hong Kong, Pokfulam Road, Hong Kong, China
b Department of Mathematics, Zhengzhou University, Zhengzhou 450001, China |
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| Abstract: | In this paper, we consider two types of second-order neutral functional differential equations. By choosing available operators and applying Krasnoselskii’s fixed point theorem, we obtain sufficient conditions for the existence of periodic solutions to such equations. |
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| Keywords: | Neutral functional differential equation Positive periodic solutions Fixed point Second order Operator |
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