| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 837940 | Nonlinear Analysis: Real World Applications | 2012 | 18 Pages |
Abstract
In this paper, some existence theorems are obtained for infinitely subharmonic solutions of second order Hamiltonian systems under non-quadratic conditions. The approach is the minimax principle. Our results greatly extend and improve some known results.
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Authors
Xingyong Zhang, Xianhua Tang,