Center Conditions and Bifurcation of Limit Cycles at the Equatorin a Class of Seven Degree Polynomial Differential System
ZHANG Qi;LIU Yirong
Journal of System Science and Mathematical Science Chinese Series ›› 2008, Vol. 28 ›› Issue (3) : 275-281.
Center Conditions and Bifurcation of Limit Cycles at the Equatorin a Class of Seven Degree Polynomial Differential System
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