Keywords
special derivative equation
quasi-linear equations
characteristic equation
hyperbolic type equation
elliptic type equation
parabolic type equation
problems characterized by parabolic type equations
quasi-linear equations
characteristic equation
hyperbolic type equation
elliptic type equation
parabolic type equation
problems characterized by parabolic type equations
Abstract
In the article, the classification of the differential equations of the second order, characterized by the differential equations of the particular derivative, is written in many problems of mathematical physics.