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Finally, the existece of periodic solution for the impulsive management is also discussed.

最后讨论进行脉冲收获和管理的周期解存在性问题。

Numerical experiments show that the method efficiently computes the almost periodic solution of the system.

数值结果表明，此方法可以在要求的精度内计算出Lotka-Volterra系统的概周期解。

Taking advantage of coincidence degree theory we analyze the existing of periodic solution.

本文的第四章对具有负反馈条件的双时滞微分方程解的振动性进行了研究。

Moreover, the attraction of periodic solution of order one and positive invariant of system has be discussed numerically.

模型中我们还考虑了为控制疾病的流行而采取的人工免疫接种的因素。

This paper considers the problem of numerically computing the almost periodic solution of the Lotka-Volterra system.

刘颖研究了Lotka-Volterra系统概周期解的数值计算方法。

In this paper,by means of the iterative analysis method,the existence for periodic solution of first-order differential equations is considered.

利用迭代分析方法讨论了一类一阶微分方程周期解的存在性，并得到一些新的结果。

In this paper, an orthogonal function method is presented based on the idea to suppose periodic solution with the method of harmonic balance.

本文根据谐波平衡法假设周期解的基本思想，提出了一种分析非线性振动特性的正交函数法。

By using the method of coincidence degree, a set of easily verifiable sufficient conditions are established for the existence of positive periodic solution of this system.

利用重合度理论的延拓定理讨论了此系统周期解的存在性问题，得到了保证周期解存在的充分条件。

The second chapter discusses the existence of positive periodic solution to infinite delay Lotka-volterre model.

第二章论证了无穷时滞Lotka-Volterra型系统的正周期解的存在性。

Chapter 3 mainly gives the results of stability and periodic solution ofdegenerate differential system with delay.

第三章主要给出关于退化时滞微分系统的稳定性和周期解的结果。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。