偶变元超双曲型方程解的中量满足的积分方程

The Integral Equation Satisfied by the Mean Value of the Solution to even Variable Ultra hyperbolic Equation

通过基本解与基本公式，给出了偶变元常系数超双曲型方程解的中量，并指出了解的中量满足的积分方程．

By using the elementary solution and the fundamental formula of the ultra hyperbolic eqution,the solutions mean value of the even variable ultra hyperbolic equation with constant coefficient and the integral equation which the solutions mean value satisfied were given .