1.
This paper is to consider subharmornic solutions for a class of nonautonomous second order systems.
本文主要研究一类二阶方程组的次调和解。
2.
Periodic solutions for a class of second order nonlinear differential equations;
一类二阶非线性微分方程组的周期解
3.
Simple solution to a kind of second order ordinary differential equations
一类二阶常微分方程组求解的简便方法
4.
The solution of the set of second-order linear differential equations depends on the eigenvalues of A.
二阶线性微分方程组（6．10）的解依赖于A的特征值。
5.
ALMOST PERIODIC SOLUTIONS OF A CLASS OF TWO-DIMENSIONAL NONLINEAR DIFFERENTIAL SYSTEMS
一类二阶非线性微分方程组的概周期解
6.
The Existence of the Solutions of a Class of Boundary Value Problems for Systems of Second Order Ordinary Differential Equations;
一类二阶常微分方程组边值问题解的存在性
7.
Positive Entire Solution to System of Second Order Nonlinear Elliptic Equation;
一类非线性二阶椭圆型方程组的正整体解
8.
Oscillation Theorems for Systems of a Class of Second Order Partial Differential Equations;
一类二阶偏泛函微分方程组的振动性定理
9.
Positive Solutions for a Kind of Second Order Boundary Value Problems of Ordinary Differential Equations(Systems)
一类二阶常微分方程（组）边值问题的正解
10.
Positive Solutions of Second-order Singular Boundary Value Problem(s) on Time Scales
测度链上二阶奇异动力方程（组）边值问题的正解
11.
Existence of Three Solutions for Boundary Value Problems of Second Order Differential Systerms
一类二阶微分方程组边值问题三解的存在性
12.
Discussion on the Solutions to a Kind of Systems of Second-order Differential Equations with Constant Coefficients
一类二阶常微分方程组通解形式的讨论
13.
Oscillation of Solutions to Second Order Damped Time-Delay Partial Differential Equation Systems
二阶阻尼时滞偏微分方程组解的振动性
14.
Existence of positive solutions of boundary value problem for second-order ordinary differential systems
二阶常微分方程组边值问题正解的存在性
15.
Riemann-Hilbert Boundary Value Problem in a Class of Overdetermined Hyperbolic Equations of Second Order
一类二阶超定双曲型复方程组的Riemann-Hilbert边值问题
16.
Positive Solutions of Boundary Value Problems for Systems of Nonlinear Second Order Differential Equations
二阶非线性常微分方程组边值问题的正解
17.
The Reduction of Qrder for Seconderorder Linear Homogeneous Equation of Coustant Coefficients
二阶常系数线性齐次方程的降阶代换
18.
Using variational method, the boundary value problem for a class of nonlinear systems of differential equations of second order is studied.
文章用变分法研究非线性二阶微分方程组边值问题.