The differential equation with varied coefficient of the SH-wave in the functionally graded materials is established.
建立了功能梯度材料中SH波的变系数微分方程。
The differential equation with varied coefficient of one-dimensional P wave in the functionally graded materials is established.
建立了功能梯度材料中一维 P 波的标准变系数微分方程,对材料的弹性模量和质量密度均呈指数函数变化情况进行了求解,弹性模量、质量密度相同分布时,给出子位移的解析解；弹性模量、质量密度不同分布时,给出了位移的 WKBJ 近似解析解。
Since this equation is a second-order differential equation with variable coefficients, it is hard to find the closed soultion.
由于该方程是二阶变系数微分方程,其解析解很难得到。
differential equation with separated variables
分离变数型微分方程
differential equation with separable variables
可分离变量微分方程
Differential Transform Method for the Fractioanl Differential Equations with Riemann-Liouville Derivative
Riemann-Liouville型分数阶微分方程的微分变换方法
differential equation with deviating argument
偏差自变数微分方程
differential equation with retarded argument
推迟自变数微分方程
Three Intergral Kinds of Functional-coefficient Differential Equations of the Third Order;
三阶变系数常微分方程的三种可积类型
Existence of Nonoscillatory Solutions of Second-order Neutral Differential Equations with Variable Coefficients;
变系数二阶中立型微分方程非振动解的存在性
The Integratable Types of Non linear Deformation Coeffilient First order Differential Equation;
一阶变系数非线性微分子方程的可积类型
Some New Integrable Types of Higher Order Linear Ordinary Differential Equations with Variable Coefficients
高阶变系数线性微分方程的一些新的可积类型
Oscillation of The Second-order Neutral Delay Differential Equations with Variable Coefficient
二阶变系数中立型时滞微分方程的振动性
A Solvable Type of Fourth Order Linear Differential Equation with Variable Coefficients
变系数四阶线性微分方程的一个可解类型(英文)
ODE'S, PDE's, and Boundary Conditions. Well-posedness.
常微分方程的数值方法，离散稳定性。
Research on Variational Inequality for a Boundary Value Problem about Elliptic Differential Equation with Variable Coefficients
变系数椭圆型微分方程边值问题的变分不等式研究
"In mathematical analysis, an integral transform useful in solving certain types of partial differential equations."
数学分析中的一种积分变换,可用来解决特定类型的偏微分方程式。
DIFFERENTIAL TRANSFORM METHOD FOR HIGH INDEX DIFFERENTIAL-ALGEBRAIC EQUATIONS
求解高指数微分代数方程组的微分变换法(英文)
Numerical Analysis of Nonlinear Neutral Functional Differential Equations;
非线性中立型泛函微分方程数值分析
High Order Multiple Method for Fractional Ordinary Differential Equation and Numerical Method for Variable Order Fractional Diffusion Equation;
分数阶常微分方程的高阶多步法和变分数阶扩散方程的数值方法
Application of Modified Variational PDE Model to Blind Digital Image Restoration of Vehicle License Plate Number
模糊车牌号数字图像盲复原中基于变分的偏微分方程模型的应用