论文标题
曲线平行四边形身份和均值的均值特性，用于半线性双曲线方程
Curvilinear parallelogram identity and mean-value property for a semilinear hyperbolic equation of second-order
论文作者
论文摘要
在本文中，我们讨论了二阶双曲方程解的一些重要定性特性，其涉及二阶导数的术语系数与所需功能及其衍生物无关。这些方程的解具有称为曲线平行四边形身份（或均值属性）的特殊属性，可用于解决某些初始有限的值问题。
In this paper, we discuss some of the important qualitative properties of solutions of second-order hyperbolic equations, whose coefficients of the terms involving the second-order derivatives are independent of the desired function and its derivatives. Solutions of these equations have a special property called the curvilinear parallelogram identity (or the mean-value property), which can be used to solve some initial-boundary value problems.
