Vitrichenko I E

Publications in Math-Net.Ru

1. On the stability in a critical case of a zero and a pair of pure imaginary roots of an $n$-th order nonautonomous nonlinear equation
   
   Differ. Uravn., 27:2 (1991),  350–354
2. On the stability in the critical case of a zero root and of a pair of purely imaginary roots of a nonautonomous $n$th order quasilinear equation
   
   Differ. Uravn., 26:12 (1990),  2027–2046
3. Stability of the zero solution of a second-order nonlinear nonautonomous equation
   
   Differ. Uravn., 26:11 (1990),  1878–1884
4. On the center of attraction of a quasilinear nonautonomous system in a critical case
   
   Differ. Uravn., 26:6 (1990),  1081–1084
5. On the stability of the zero solution of a second-order nonautonomous quasilinear equation
   
   Differ. Uravn., 23:4 (1987),  708–712
6. Stability of the zero solution of a quasilinear nonautonomous system in the critical case
   
   Differ. Uravn., 19:3 (1983),  521–523
7. Generalization of Ljapunov's stability theorem in the case of one zero characteristic exponent for nonautonomous systems
   
   Dokl. Akad. Nauk SSSR, 264:4 (1982),  819–822