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POSITIVE PERIODIC SOLUTION TO SECOND-ORDER NEUTRAL FUNCTIONAL DIFFERENTIAL EQUATION WITH MIXED DELAY |
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| Authors: | Yaping Ma Zongfu Zhou Jianzhong Xu |
| Affiliation: | (School of Mathematical Sciences, Anhui University, Hefei 230039) |
| Abstract: | We discuss two types of second-order neutral functional differential equations with mixed delay in this paper. By applying Krasnoselskii’s fixed-point theorem, some results about the existence of positive periodic solution to the systems are obtained, which complement the previous known results. |
| Keywords: | Krasnoselskii’s fixed-point theorem neutral functional differential equations positive periodic solution |
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