Periodic solutions of neutral functional differential systems with two parameters |
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Institution: | 1. College of Mathematics and Computer Science, Changsha University of Science Technology, Changsha, 410076, China;2. College of Mathematics and Econometrics, Hunan University, Changsha, 410082, China |
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Abstract: | In this paper, we consider certain first-order neutral differential system with two parameters. Some existence results of one positive periodic solution and two positive periodic solutions and nonexistence of positive periodic solutions are obtained. Our approach is based on Krasnoselskii fixed point theorem in cones. |
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