Oneness and existence of the solution to the problem of boundary values for ‎a set of second-order partial differential equations

Abstract

Abstract: Most of the problems of mathematical physics, when solving them, result in ‎solving one or more partial differential equations with imposed initial and boundary ‎conditions. This is known as boundary value problems for differential equations. This paper ‎studies the solution of a set of parabolic and hyperbolic partial differential equations with ‎boundary conditions imposed in different regions of the y o x plane