A. Maciejewski et S. Rybicki, Global bifurcations of periodic solutions of Henon-Heiles system via degree for S-1-equivariant orthogonal maps, REV MATH PH, 10(8), 1998, pp. 1125-1146
In this article we investigate global bifurcations of non-stationary period
ic solutions of autonomous Hamiltonian systems. As the main tool we use the
degree theory for S-1- equivariant orthogonal maps (see [24]-[26]). In ord
er to illustrate our abstract results, we study global bifurcations of peri
odic solutions of the famous Henon-Heiles Hamiltonian system.