Perturbation from an elliptic Hamiltonian of degree four - III global centre

Journal of Differential Equations

Volumn 188, Issue 2, 2003, Pages 473-511

  Dumortier, Freddy ^a   Li, Chengzhi ^b  

^a HASSELT UNIVERSITY   (Belgium)

^b PEKING UNIVERSITY   (China)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0037374633     PISSN: 00220396     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0022-0396(02)00110-9     Document Type: Article

References (7)

1. S.-N. Chow, J.A. Sanders, On the number of critical points of the period, J. Differential Equations 64 (1986) 51-66.
2. F. Dumortier, C. Li, Perturbation from an elliptic Hamiltonian of degree four: (I) saddle loop and two saddle cycle, J. Differential Equations 176 (2001) 114-157.
3. F. Dumortier, C. Li, Perturbation from an elliptic Hamiltonian of degree four: (II) cuspidal loop, J. Differential Equations 175 (2001) 209-243.
4. G. Gavrilov, Remark on the number of critical points of the period, J. Differential Equations 101 (1993) 58-65.
5. A. Khibnik, B. Krauskopf, C. Rousseau, Global study of a family of cubic Liénard equations, Nonlinearity 11 (1998) 1505-1519.
6. J. Li, Two results on Liénard equations, Ph.D. Thesis, Peking University, 1998.
7. C. Li, Z. Zhang, A criterion for determining the monotonicity of the ratio of two Abelian integrals, J. Differential Equations 127 (1996) 407-424.