Fei, Guihua2020-07-072020-07-072002-01-15Fei, G. (2002). On periodic solutions of superquadratic Hamiltonian systems. <i>Electronic Journal of Differential Equations, 2002</i>(08), pp. 1-12.1072-6691https://hdl.handle.net/10877/11986We study the existence of periodic solutions for some Hamiltonian systems ż = JH_z(t, z) under new superquadratic conditions which cover the case H(t, z) = |z|2 (ln(1 + |z|p))q with p,q > 1. By using the linking theorem, we obtain some new results.Text12 pages1 file (.pdf)enAttribution 4.0 InternationalPeriodic solutionHamiltonian systemLinking theoremArticle