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In the paper,we investigate the asymptotic behavior of three ecological models and the Hopf bifurcation for a class of Logistic model with time delays.

本文共分四个部分研究了三类生态模型解的渐近性和一类时滞Logistic模型的Hopf-分支问题。

In 1981,Ehm sloved the existence and the smoothness properties and the asymptotic behavior of the local time.

中文摘要： Ehm在1981年解决了多指标稳定过程局部时的存在性、连续性及其Hlder律；Xiao在2003年讨论了可加Lévy过程局部时的相应的问题。

Study about the first mean value theorem for integrals,which obtain a new results on the mean value asymptotic behavior.

研究积分第一中值定理，获得了其中值渐近性的一个新结果。

This paper is devoted to studying the asymptotic behavior of the intermediate point in the mean value theorem for first form curve integrals.

摘要讨论了第一类曲线积分中值定理"中间点"的渐近性质，得到了更具一般性的新结果。

The paper studies the asymptotic behavior of "interior point" on the second mean value theorem for integrals when the length of integral interval tends to be infinite,and the asymptotic estimation formulas under very weak conditions are given.

讨论当积分区间长度趋于无穷大时，积分第二中值定理的"中间点"的渐近性态，在较弱的条件下，获得积分第二中值定理的"中间点"当积分区间长度趋于无穷大时的渐近估计式。

Asymptotic behavior ; intermediate point ;

渐近性；中间点；

To describe the asymptotic behavior of certain time series or random fields,many ways of modeling the weak dependence have already been work out.

为了描述某些时间序列和随机场的渐近行为，许多作者引入了随机变量的相依性概念，其中最流行的就是混合概念。

An asymptotic series solution is constructed by the perturbation technique of deflection type for postbuckling behavior of the plates with four simply supported edges in biaxial compression.

基於Reissner剪切板理论和Karman型板的精化理论，导出了反对称斜交铺层剪切矩形板的广义Karman大挠度方程，并运用位移型摄动技术，构造出双向压缩四边简支矩形板的后屈曲渐近级数解。

A class of SIR model with transportation is studied. We studied the unique existence of solution and the asymptotic behavior of its stationary solution.

研究一类具有迁移的无垂直传染的SIR模型，讨论了其解的存在惟一性和拟稳态解的渐近性态。

Thirdly, by using the differential inequalities method, the existence, uniqueness and its asymptotic behavior of solution for the problem are studied.

然后，利用微分不等式方法，研究了问题解的存在、唯一性和渐近性态。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。