On the stability of double homoclinic and heteroclinic cycles
Nonlinear Analysis: Theory, Methods & Applications - Theory and methods
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This paper is about the number of limit cycles for a quintic near-Hamiltonian system. It is proved that the system can have 20, 22, 24 limit cycles with different distributions of limit cycles for each case. The limit cycles are obtained by using the methods of bifurcation theory and qualitative analysis.