equation of first variation是什么意思

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用法例句

In this paper,we prove a theorem on solving a differential equation of one order by polar transformation.

本文给出了一阶二次微分方程在极坐标变换下的求解定理,提供了一种求解一阶二次微分方程的方法和途径。

Solving a Differential Equation of One Orderby Polar Transformation;

一阶二次微分方程在极坐标变换下的求解定理

Integral Criterion of One Kind of Second-Orden Ouaclratic Equation And Reduction of Its Integrals to Common Denominaton;

一类二阶二次微分方程的可积判据及其通积分

A Method on the General Solution to the Second-order Nonlinear Homogeneous Differential Equation;

求二阶非齐次线性微分方程通解的一种方法

General solutions for a class second-order homogeneous linear variable coefficients differential equation

一类二阶变系数齐次线性微分方程的通解

Oscillation Theorems for Second Order Strong Sublinear Differential Equations;

二阶强次线性微分方程的振动性定理

Subnormal Solutions of Second Order Homogeneous Linear Differential Equations with Periodic Coefficients

周期系数二阶齐次线性微分方程的次正规解

The Formula of General Solution for Second Order Linear Differential Equation with Constant Coefficients

求二阶线性常系数非齐次微分方程通解的一种新方法

Solutions of Three New Second-order Quadratic Differential Equations and Their General Solution Formula;

新三类二阶二次微分方程的解法及其通解公式

General Solutions to Some Kinds of Secord-Order Quadratic Equations;

几类二阶二次微分方程的解法及其通解公式

From One Special Solution of Homogeneous Linear Differential Equation to the General Solution of Non-homogeneous Linear Differential Equation;

从齐次方程的一个特解到非齐次方程的通解——二阶线性微分方程的又一种常数变易法

A new method,try to solve special integral of order 2 constant coefficient innomogeous linear differential equation

二阶常系数非齐次线性微分方程特解求解方法

An important case is the linear homogeneous second-order differential equation with constant coefficients.

一种重要的情形是常系数二阶线性齐次微分方程。

A Consistent Method for Getting Special Solutions of Common Two Order Linear Non-homogenous Differential Equations;

常见二阶常系数线性非齐次微分方程特解求法的统一

A Simple Solntion to a Non-homogeneous Liner Differential Equation with the second Order Constant Coefficient;

二阶常系数非齐次线性微分方程通解的一种简单算法

Some Methods to Find Particular Solutions to Second-order Constant Coefficient Inhomogenous Linear Differential Equation;

二阶常系数非齐次线性微分方程特解的一些求法

Existence of Homoclinic Solutions of a Class of Semilinear Sixth-Order Differential Equations with Superquadratic Potentials

一类超二次六阶半线性微分方程同宿轨道解的存在性

Existence of Homoclinic Orbits for a Class of Semilinear Sixth Order Periodic Differential Equations with Superquadratic Potentials

一类超二次六阶半线性周期微分方程同宿轨道存在性

Solution of Two-order Nonlinear Ordinary Differential Equations by First Integral;

利用首次积分求解几类二阶非线性常微分方程