Ershov Evgenii Konstantinovich

Publications in Math-Net.Ru

1. On the number of cycles of some differential equations on a two-dimensional torus
   
   Differ. Uravn., 27:12 (1991),  2167–2169
2. On structurally stable polynomial diffeomorphisms of the unit circle
   
   Differ. Uravn., 24:4 (1988),  687–689
3. Typical properties of the behavior of trajectories on a multidimensional torus
   
   Differ. Uravn., 19:11 (1983),  1847–1853
4. The dependence on the parameter of the structure of the solutions on a toroidal invariant surface
   
   Differ. Uravn., 14:5 (1978),  919–921
5. The stability of the rotation number of a doubly periodic differential equation
   
   Differ. Uravn., 11:11 (1975),  1949–1955
6. Dependence on a parameter of the rotation number of a differential equation defined on the torus
   
   Differ. Uravn., 11:10 (1975),  1774–1779