1974-1975/29/3

Strong maximum principle for non-linear parabolic differential-functional inequalities

On the characteristics for a system of partial differential equations of the first order in a special case

Remarks on a three-point boundary value problem in a differential equation of the third order

Boundedness theorems for some second order differential equations I

On M. Kac's probabilistic formula for the solution of the telegraphist's equation

Sur un système d'équations fonctionnelles lie au rapport anharmonique

Sur un système d'équations aux différences finies

Теоремы Лиувилля для систем уравнений с частными производными

À propos d'un lemme de Tadeusz Ważewski