摘要
着重论述了一阶线性、半线性、非线性偏微分方程的一些解法。
Some solutions of the first order linear,semilinear and nonlinear partial differential equations are discussed principally.
关键词
偏微分方程
可微函数
偏导数
微分方程
partial differential equation
differnetiable function
partial derivative
