Sokolov P V

Publications in Math-Net.Ru

1. Special differential rings
   
   Sibirsk. Mat. Zh., 22:3 (1981),  225–227
2. A geometric picture of the integral surfaces near a singular integral element of a first order partial differential equation
   
   Differ. Uravn., 7:12 (1971),  2225–2233
3. Limit theorems on the existence of integral surfaces that are tangent to singular integral elements
   
   Differ. Uravn., 7:9 (1971),  1672–1683
4. On the paper of A. V. Phadadze and A. A. Shestakov “On the classification of the singular point of a first order differential equation not solved for the derivative”
   
   Mat. Sb. (N.S.), 53(95):4 (1961),  541–543