Nascimento, Francisco José dos Santos2026-07-272026-07-272026-02-28https://repositorio.univasf.edu.br/handle/123456789/1493https://creativecommons.org/licenses/by/4.0/Non-degenerate center · Period function · Analytic conjugacy · Mechanical Hamiltonian systemArtigo de Periódicohttps://link.springer.com/article/10.1007/s12346-026-01469-1CIENCIAS EXATAS E DA TERRA