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Periodic solutions of second order superquadratic Hamiltonian systems with potential changing sign (I) |
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| Authors: | Mei-Yue Jiang |
| Affiliation: | LMAM, School of Mathematical Sciences, Peking University, Beijing, 100871, P.R. China |
| Abstract: | We consider the periodic solutions of the second order Hamiltonian system |
| Keywords: | |
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