一类五次哈密顿系统的相图(英文)

Phase Portraits for a Class of Quintic Hamiltonian System

考虑一类具有Ｚ４ 对称性的五次哈密顿系统，利用定性分析的方法，划分了参数空间，画出了相图，并对轨线进行了分类．

A class of quintic Hamiltonian system with Z 4-symmetry is considered.Using the methods of qualitative analysis,the parameter space is divided,the phase portraits are given and the orbits are classified.