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1·The research of delay differential equation is very important in theory and in practice.

这篇文章的主要目的是研究时滞对种群生长的作用。

2·In this paper, we discuss uniform boundedness and uniform ultimate boundedness of differential systems with infinite delay.

研究了非线性无穷时滞微分系统解的一致有界性和一致最终有界性。

3·The oscillation of a class of second order strongly sublinear delay differential equations is discussed. Three new theorems are established. The results generalize and improve some known ones.

讨论了一类二阶强次线性时滞微分方程解的振动性质，建立了三个新的振动性定理。推广和改进了已知的一些结果。

4·The oscillation of a class of second order strongly sublinear delay differential equations is discussed. Three new theorems are established.

讨论了一类二阶强次线性时滞微分方程解的振动性质，建立了三个新的振动性定理。

5·The second chapter discusses and proves the existence and uniqueness of periodic solutions and stability of a neutral integral and differential equation with infinite delay in detail.

第二章详细论证了一类具有无穷时滞中立型积分微分方程周期解的存在唯一性和稳定性。

6·One of them is piecewise continuous argument delay differential equation, simply called EPCA.

其中第一类为分段连续的时滞微分方程，简称为epca。

7·Numerical experiments show that RTFHM is efficient for solving linear and nonlinear non-stiff delay differential equations.

数值试验结果表明，RTFHM对线性和非线性的非刚性延迟微分方程都是有效的。

8·Some general theorems are available about the existence and global continuation of periodic solutions in symmetric delay differential equations.

关于对称时滞微分方程中的周期解的存在性和全局持续存在性，现在已有一些一般性的理论。

9·Electrical power, changing with differential group delay (DGD) and detected from an optical communication link, can be used as feedback signals of compensating for PMD.

光纤通信线路检测到的电功率随差分群延迟变化，可以作为PMD补偿的反馈控制信号。

10·Sufficient conditions for boundedness of solutions of nonlinear delay differential equations with impulses are established by using impulsive integral inequalities with a deviation.

利用时滞脉冲积分不等式，给出了一类非线性的脉冲时滞微分方程的解有界性的充分条件。