Chichkin Evgenii Sergeevich

Publications in Math-Net.Ru

1. The estimation of the domains of nonnegativity of the Cauchy function and its derivatives up to order $n-1$ for an $n$th order ordinary linear differential equation
   
   Differ. Uravn., 6:7 (1970),  1308–1310
2. A certain integral formula for the solution of ordinary differential equations
   
   Differ. Uravn., 5:9 (1969),  1652–1662
3. A method of estimating solutions of an integral equation
   
   Izv. Vyssh. Uchebn. Zaved. Mat., 1966, no. 3,  68–72
4. On the existence of upper and lower solutions of the Cauchy problem for a second-order differential equation
   
   Izv. Vyssh. Uchebn. Zaved. Mat., 1964, no. 5,  91–94
5. A theorem on a differential inequality for multi-point boundary-value problems
   
   Izv. Vyssh. Uchebn. Zaved. Mat., 1962, no. 2,  170–179
6. A non-oscillation theorem for a linear self-adjoint differential equation of fourth order
   
   Izv. Vyssh. Uchebn. Zaved. Mat., 1960, no. 4,  206–209
7. On the non-oscillation of solutions of non-linear differential equations of third and fourth order
   
   Izv. Vyssh. Uchebn. Zaved. Mat., 1959, no. 5,  219–221
8. The non-oscillation problem for linear equations of fourth order
   
   Izv. Vyssh. Uchebn. Zaved. Mat., 1958, no. 3,  248–250
9. Non-oscillatory solutions of non-linear second-order equations
   
   Izv. Vyssh. Uchebn. Zaved. Mat., 1958, no. 2,  3–4