Semigroups and linear partial differential equations with delay 半群和线性时滞偏微分方程
Non - linear partial differential equation 偏微分方程式
A symbolic computation method to decide the completeness of the solutions to the system of linear partial differential equations 判定线性偏微分方程组解的完备性的一个符号计算方法
We apply wu - ritt method to linear partial differential equations and gave the size of solution arid formal taylor solutions 我们把它应用到线性偏微分方程上去得到了解的规模和形式幂级数解。
In the first part , by using the method of characteristic curves for solving linear partial differential equations , all invariant algebraic surfaces for three nonlinear systems are obtained 第一部分,利用求解线性偏微分方程的特征曲线法,得到了三个系统的所有不变代数曲面。