Funder
National Natural Science Foundation of China
Hunan Provincial Natural Science Foundation
Fundamental Research Funds for the Central Universities
Basic and Applied Basic Research Foundation of Guangdong Province
Reference34 articles.
1. The integrability problem for a class of planar systems;Algaba;Nonlinearity,2009
2. Characterization of a monodromic singular point of a planar vector field;Algaba;Nonlinear Anal.,2011
3. Qualitative Theory of Second-Order Dynamic Systems;Andronov,1973
4. The Jacobian conjecture: reduction of degree and formal expansion of the inverse;Bass;Bull. Am. Math. Soc. (N. S.),1982
5. A complicated singular point of “center-focus” type and the Newton diagram;Berezovskaya;Sel. Math.,1994