论文信息 - Integrable systems in the plane with center type linear part - 字舞流文

Integrable systems in the plane with center type linear part

Javier Chavarriga | J. Chavarriga

[1] Shi Songling,et al. On the structure of Poincaré-Lyapunov constants for the weak focus of polynomial vector fields , 1984 .

[2] N. N. Bautin,et al. On the number of limit cycles which appear with the variation of coefficients from an equilibrium position of focus or center type , 1954 .

[3] Shi Songling,et al. A method of constructing cycles without contact around a weak focus , 1981 .

[4] N. Lloyd. Small amplitude limit cycles of polynomial differential equations , 1983 .

[5] W. A. Coppel,et al. A survey of quadratic systems , 1966 .

[6] Chih-fen Chang,et al. Qualitative Theory of Differential Equations , 1992 .