Using alternating segment explicit implicit method for the variable coefficient convection diffusion equation. The method has the obvious property of parallelism and is unconditionally stable.
应用交替分段显隐方法求解变系数对流扩散方程，此方法具有很好的并行性且无条件稳定。
Using the multiplier method, we study the boundary feedback stabilization of the wave equation with variable coefficient.
利用乘子法研究了带有变系数的波方程的反馈镇定问题。
The two conditions of the second order nonlinear differential equation with variable coefficient are given and expounded with examples.
对二阶变系数非线性微分方程的常系数化给出两个使其可积的条件，并举例论证。
It can be applied to solve nonpositive definite or positive definite partial differential equation with arbitrary variable coefficient under arbitrary boundary condition.
它可以求解在任意边界条件下任意变系数正定或非正定偏微分方程。
In this paper, a cross-section function of brick chimney has been assumed based on traditional hypothesis and a variable coefficient free-vibrating differential equation has been derived.
本文假设了接近砖烟囱实际截面面积的函数，推出了一个变系数的自由振动微分方程。
By the discretization of spatial variable in the equation, a third-order differential system of equations containing periodic time-varying coefficient is derived.
采用微分求积法对方程中的空间变量进行离散，得到仅含有时间变量的三阶周期系数微分方程组。
In this paper, based on the computerized symbolic computation, solutions of variable-coefficient the generalized shallow water wave equation are obtained.
利用该方法，运用计算机符号计算，求出了变系数的一般浅水波方程的孤子解。
In this paper, based on the computerized symbolic computation, solutions of variable-coefficient the generalized shallow water wave equation are obtained.
利用该方法，运用计算机符号计算，求出了变系数的一般浅水波方程的孤子解。
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