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Open Accesshttps://doi.org/10.1016/j.jmaa.2003.11.007
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Cite Publication Date: Apr 2, 2004 | |
 Citations: 49 |  License type: elsevier-specific: oa user license |
Affiliation: Chongqing Normal University
Some solvability conditions of periodic solutions and subharmonic solutions are obtained for a class of new superquadratic non-autonomous second-order Hamiltonian systems by the minimax methods in critical point theory.
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