By means of finitely-smooth normal form theory and the method of infinitesimal analysis,it is proved that the cyclicity of a planar codimension 3 polycycle S(2) is three and the complete bifurcation diagram is provided.
基金Project supported by the National Natural Science Foundation of China and the DEPF of China.
文摘By means of finitely-smooth normal form theory and the method of infinitesimal analysis,it is proved that the cyclicity of a planar codimension 3 polycycle S(2) is three and the complete bifurcation diagram is provided.
