Zhitelzeif E D

Publications in Math-Net.Ru

1. Limit cycles of a system of relay type with polynomial right-hand side
   
   Differ. Uravn., 13:4 (1977),  753–755
2. Tests for the existence of limit cycles for systems of limit cycles for systems of the form $\dot{x}=y$, $\dot{y}=-\sum_{k=0}^n f_k(x)y^k$
   
   Differ. Uravn., 11:9 (1975),  1702–1704
3. The limit cycles of the Rayleigh equation
   
   Differ. Uravn., 8:7 (1972),  1309–1311
4. The limit cycles of the equation $\ddot x+f(x,\,\dot x)\dot x+g(x)=0$
   
   Differ. Uravn., 8:6 (1972),  1095–1097
5. The limit cycles of a certain autonomous system
   
   Differ. Uravn., 7:11 (1971),  1967–1973
6. A test for the existence of a periodic solution of the Liénard equation
   
   Differ. Uravn., 6:6 (1970),  1127–1130