| Title | Periodic solutions of nearly integrable Hamiltonian systems bifurcating from infinite-dimensional tori |
| Publication Type | Journal Article |
| Year of Publication | 2020 |
| Authors | Fonda, A, Klun, G, Sfecci, A |
| Journal | NONLINEAR ANALYSIS |
| ISSN | 0362-546X |
| Abstract | We prove the existence of periodic solutions of some infinite-dimensional nearly integrable Hamiltonian systems, bifurcating from infinite-dimensional tori, by the use of a generalization of the Poincaré–Birkhoff Theorem. |
| URL | https://doi.org/10.1016/j.na.2019.111720 |
| DOI | 10.1016/j.na.2019.111720 |
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