Prokop'ev Vitalii Pavlovich

Publications in Math-Net.Ru

1. The stability of the unperturbed motion in the critical case of two zero roots and a pair of pure imaginary roots
   
   Differ. Uravn., 12:11 (1976),  2009–2013
2. The stability of motion in the critical case of $2k$ zero roots
   
   Differ. Uravn., 9:2 (1973),  383–385
3. On the stability of systems with aftereffect in the critical case of two zero roots
   
   Differ. Uravn., 4:11 (1968),  2027–2033
4. Stability in the critical case of $r$ null-roots for a system with aftereffect
   
   Izv. Vyssh. Uchebn. Zaved. Mat., 1967, no. 1,  88–94
5. On stability in the critical case of a double zero root for systems with an aftereffect
   
   Differ. Uravn., 2:4 (1966),  453–462


6. On the 90th birthday of Sergei Nikanorovich Shimanov
   
   Trudy Inst. Mat. i Mekh. UrO RAN, 19:1 (2013),  5–11