1.
Existence Conditions of Integrating Factors for First Order Ordinary Differential Equations
一阶常微分方程积分因子存在性条件
2.
The Condition of Equivalence and Implication for the Existence of the First Class Integrating Factor;
一类积分因子存在的充要条件及应用
3.
The New Existence Theorem Of Complex Integrating Factor and Its Application;
新复合型积分因子的存在定理及应用
4.
Two special integrating factors of a non-complete differential equation;
一个非恰当方程的两类特殊积分因子
5.
A Sufficient and Necessary Condition of Pufa Equation to Possess Integral Factor;
普法方程有积分因子的一个充要条件
6.
The solution of first order ordinary differential equation with the integral factor of a product form
一阶常微分方程具有一种乘积形式积分因子的求解
7.
The Existence Theorem Of Linear Integral Factor Of A Type Of Different Equations And Its Application;
一类微分方程线型积分因子的存在定理及应用
8.
Amplification of Complex Integral Factor of Differential Equation;
对微分方程复合型积分因子问题的推广
9.
The Theorem and Its Application for Solving Integrating Factors of Ordinary Differential Equitions;
常微分方程求积分因子的一个定理及其应用
10.
Integrating Factors of Two Dimensional Automatic Differential System & Their Solution Seeking;
平面自治微分系统的积分因子及求解问题
11.
Solution of Integral Factor for the First Order Ordinary Differential Equation
关于一阶常微分方程的积分因子求解问题
12.
The Packet Integral Factor Method of First-order Symmetrical Shape Non-exact Differential Equation
一阶对称形非恰当方程的分组积分因子法
13.
The Existence Theorem of a kind of Complex Integrating Factor and Its Application;
一类复合型积分因子的存在定理及应用
14.
Existence Theorem and Application of Integrating Factor With the Form of φ(x~n+y~m);
φ(x~n±y~m)型积分因子的存在性与应用
15.
A new factor appears under the integral sign.
积分号内出现了一个新的因子。
16.
Research on the Model of Matched Springboard in the Stretching Stage of Jumping;
积极蹬伸“合板”的模型探究和因子分析
17.
To Solve the Problem of Nomial Linear Differential Equation with Factorization Integral;
用因子配导积分法解一阶线性微分方程
18.
Experiment on Efficiency of Molecular Deposition Film Flooding and Analysis on the Influence Factors
分子沉积膜驱油效率实验及影响因素分析