supported by the National Natural Science Foundation of China (Grant Nos.10672193, 10972240);Fu Lan Scholarship of Sun Yat-sen University,and the University of Hong Kong (CRGC grant)
The hyperbolic Lindstedt-Poincaré method is applied to determine the homoclinic and heteroclinic solutions of cubic strongly nonlinear oscillators of the form x + c1 x + c3 x 3= ε f (μ,x,x).In the method,the hyperb...