Pak S A

Publications in Math-Net.Ru

1. Green's function for a differential equation with a deviating argument
   
   Mat. Zametki, 17:3 (1975),  443–448
2. Conditions for the negativity of the Green's function of a Sturm–Liouville problem for a second order linear ordinary differential equation
   
   Differ. Uravn., 5:6 (1969),  1114–1119
3. A priori estimate of solutions of boundary value problems for second order ordinary nonlinear differential equations
   
   Differ. Uravn., 3:6 (1967),  890–897
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. Some properties of the Cauchy function
   
   Izv. Vyssh. Uchebn. Zaved. Mat., 1964, no. 4,  9–11
6. Sign-preserving conditions for the Green's function of a Sturm–Liouville problem
   
   Dokl. Akad. Nauk SSSR, 148:6 (1963),  1265–1267
7. On a sequence which converges to the solution of a system of ordinary differential equations
   
   Sibirsk. Mat. Zh., 3:4 (1962),  569–574