Shcheglova Natal'ya Leonidovna

Publications in Math-Net.Ru

1. The integrability conditions for two cubic vector fields
   
   Differ. Uravn., 36:1 (2000),  94–97
2. Investigation of systems with homogeneous cubic nonlinearities that have a focus and a center
   
   Differ. Uravn., 29:2 (1993),  246–255
3. A criterion for the coexistence of a center and a focus of the equation $y'=(x+\lambda y+Q_3)/(-y+\lambda x+P_3)$
   
   Differ. Uravn., 27:11 (1991),  2001–2005