共 50 条
- [1] On the number of limit cycles which appear by perturbation of Hamiltonian two-saddle cycles of planar vector fields Bulletin of the Brazilian Mathematical Society, New Series, 2011, 42 : 1 - 23
- [2] On the number of limit cycles which appear by perturbation of Hamiltonian two-saddle cycles of planar vector fields BULLETIN OF THE BRAZILIAN MATHEMATICAL SOCIETY, 2011, 42 (01): : 1 - 23
- [7] Limit cycles under perturbations of a quadratic Hamiltonian system Differential Equations, 2012, 48 : 693 - 700
- [8] On the number of limit cycles which appear by perturbation of two-saddle cycles of planar vector fields Functional Analysis and Its Applications, 2013, 47 : 174 - 186