渐

The asymptotic behavior of nonautonomous Lotka-Volterra systems is studied in this thesis which consists of three chapters.

本文研究非自治Lotka-Volterra系统的渐近行为，共分三章。

In Chapter 3, the asymptotic behavior of n-species nonlinear prey-competition systems is discussed.

在第三章中，我们讨论了n-种群非线性捕食—竞争系统的渐近行为。

The third section is the research about the existence and asymptotic behavior of positive solutions of the above equation.

第三部分，我们研究了上面方程正解的存在性和渐近性。

The asymptotic behavior of solutions for a class of delay differential systems was studied.

研究了一类时滞微分系统解的渐近性态。

It is known that the relation between asymptotic behavior of random sums and thedistribution theory is close.

周知，随机和的渐近性与分布理论有着密切的关系。

And the linear recurrence relation and the asymptotic behavior of ?

并考虑了 t的线性递归关系及渐近性态。

By using the difference inequalities, the asymptotic behavior of solutions to forced nonlinear neutral difference equations is studied.

利用差分不等式研究了具有强迫项的非线性中立型差分方程解的渐近性，得到了方程的解趋于零的充分条件

Under suitable conditions,using the theory of differential inequalities,the existence and asymptotic behavior of solution for the boundary value problems are studied.

适当的条件下，利用微分不等式理论，讨论了原边值问题解的存在性和渐近性。。

In this article, we mainly discuss the asymptotic behavior, existence for nonoscillatory solutions and comparison theorems for oscillation.

本文主要讨论测度链上高阶时滞动力方程的渐近性、非振动解的存在性以及振动性的比较定理。

Assuming that the connect and infectious rate is a periodic function, we study the asymptotic behavior of the solution for this model.

在模型中，假设接触感染率为时间的周期函数，研究模型解的渐近行为，得到了疾病传播的阈值。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。