| Title | Subharmonic solutions of planar Hamiltonian systems via the Poincaré́-Birkhoff theorem |
| Publication Type | Journal Article |
| Year of Publication | 2011 |
| Authors | Boscaggin, A |
| Journal | Le Matematiche |
| Volume | 66 |
| Pagination | 115–122 |
| Abstract | We revisit some recent results obtained in [1] about the existence of subharmonic solutions for a class of (nonautonomous) planar Hamiltonian systems, and we compare them with the existing literature. New applications to undamped second order equations are discussed, as well. |
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