共 50 条
- [21] Parametric Center-Focus Problem for Abel Equation Qualitative Theory of Dynamical Systems, 2014, 13 : 289 - 303
- [22] Research on the Poincare center-focus problem of some cubic differential systems by using a new method ADVANCES IN DIFFERENCE EQUATIONS, 2017,
- [23] Research on the Poincaré center-focus problem of some cubic differential systems by using a new method Advances in Difference Equations, 2017
- [25] On the center-focus problem for systems with a degenerate singular point Differential Equations, 2008, 44 : 1433 - 1439
- [26] The Center-Focus Problem and Bifurcation of Limit Cycles of A Class of Quintic System Having A Nilpotent Singular Point PROCEEDINGS OF THE 7TH CONFERENCE ON BIOLOGICAL DYNAMIC SYSTEM AND STABILITY OF DIFFERENTIAL EQUATION, VOLS I AND II, 2010, : 831 - 836
- [27] Variational equations of higher order in the center-focus problem PROGRESS IN ANALYSIS, VOLS I AND II, 2003, : 1161 - 1169
- [29] Center-focus problem for discontinuous planar differential equations INTERNATIONAL JOURNAL OF BIFURCATION AND CHAOS, 2003, 13 (07): : 1755 - 1765