partial-differential operator

It is well-known that fractional integral operator is one of the important operators in harmonic analysis with background of partial differential equations.

众所周知，分数次积分算子是调和分析中以偏微分方程为背景的一种重要算子。

Based on theory of hyperbolic linear partial differential operator, the initial value problem of a kind of quasi-linear hyperbolic equations with non-zero initial values was introduced and studied.

基于双曲型线性偏微分算子理论，引入并研究了具有非零初始值的拟线性双曲型方程的定解问题。

Impulse hyperbolic partial differential equation oscillation higher order Laplace operator.

脉冲双曲型偏微分方程振动性高阶Laplace算子。