Romanovsky Valerii Georgievich

Publications in Math-Net.Ru

1. Computation of the Center Isochronism Conditions for Polynomial Systems
   
   Differ. Uravn., 38:2 (2002),  195–200
2. The integrability conditions for two cubic vector fields
   
   Differ. Uravn., 36:1 (2000),  94–97
3. Center conditions and cyclicity of certain cubic vector fields
   
   Differ. Uravn., 34:12 (1998),  1587–1595
4. Center conditions for a six-parameter cubic system
   
   Differ. Uravn., 32:12 (1996),  1707–1709
5. On the cyclicity of a singular point of a cubic system
   
   Differ. Uravn., 32:6 (1996),  784–787
6. Center conditions for a cubic system with four complex parameters
   
   Differ. Uravn., 31:6 (1995),  1091–1093
7. On the calculation of Lyapunov quantities in the case of two purely imaginary roots
   
   Differ. Uravn., 29:5 (1993),  910–912
8. On the basis of an ideal generated by Lyapunov quantities
   
   Differ. Uravn., 28:4 (1992),  618–627
9. The properties of an ideal that is generated by Lyapunov quantities
   
   Differ. Uravn., 27:2 (1991),  207–219
10. On the finiteness of the number of limit cycles in a quadratic system
    
    Differ. Uravn., 24:11 (1988),  1904–1911