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Periodic solutions of second order singular coupled systems |
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| Authors: | Zhongwei Cao Daqing Jiang |
| Affiliation: | a School of Mathematics and Statistics, Northeast Normal University, Changchun 130024, China b Department of Applied Mathematics, Changchun Taxation College, Changchun 130117, China |
| Abstract: | We establish the existence of periodic solutions for the second order non-autonomous singular coupled systems  |
| Keywords: | 34B15 34D20 |
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