机译:Homotopy perturbation method for Fangzhu oscillator
Henan Polytech Univ, Sch Math & Informat Sci, Jiaozuo, Henan, Peoples R China;
Ain Shams Univ, Dept Math, Fac Educ, Cairo, Egypt;
Homotopy perturbation method; Frequency expansion method; Periodic solution; Fangzhu oscillator;