渐近稳定的

The structure of analytic solution space is obtained and general form of the analytic solution is presented by means of Dirichlet Series. The convergence of Dirichlet Series solution is discussed.

根据比例延迟微分方程的性质，我们构造了Dirichlet级数形式的解析解，证明了Dirichlet级数形式解的收敛性，获得了保证方程解析解渐近稳定的充分条件。

Some known results are generalized.Second,the global asymptotic stability for a higher order rational difference equation was investigated by using "Subsequence Analysis Method " in Chapter 3,and the "Semi-cycle Analysis Method" is a extension and supplement of "Semi-cycle Analysis Method".

因此，本文第三章应用"子序列分析法"研究了一类高阶的有理差分方程解的全局动力行为，进一步得到了此类高阶有理差分程解得全局渐近稳定的一些充分条件，一些已知的结果被推广。

Then, the GP〓-stability of the multistep Runge-Kutta method for neutral delay differential system with different delay terms is considered. A sufficient condition of asymptotic stability for the system is attained.

在分析中立项与非中立项具有不同延迟的中立型延迟微分系统多步Runge-Kutta方法的GP〓-稳定性时，给出了系统渐近稳定的一个充分条件。

The sufficient and necessary conditions of the nondegeneracy and struc- tural asymptotical stability for complex systems (parallel systems, series sys- tems and closed systems) are proved.

在这基础上，给出了系统在串联、并联及反馈时构成的复杂系统的非变阶条件和结构渐近稳定的充分必要条件。

A scheme of adaptive sliding-mode robust tracking control based on sliding mode equivalent control and robotic dynamics regressor is put forward and globally asymptotic stability of robotic trajectory tracking control systems designed by adopting the presented controller is proved.

基于滑模等价控制的理论和机器人动力学回归模型，提出了一种机器人自适应滑模鲁棒跟踪控制方法，证明了采用这种控制器所设计的机器人轨迹跟踪控制系统是全局渐近稳定的。

Firstly, analysis on the problem of stability for the closed loop system in one form of the above system is presented by constructing singular Lyapunov function, a sufficient condition on E-asymptotic stability of the system is given.

首先通过构造广义Lyapunov函数的方法，对其中一类形式的闭环系统稳定性问题进行分析，给出了系统零解E-渐近稳定的充分条件。

First, an improved delay-dependent asymptotic stability criterion for singular time-delay systems in terms of a strict linear matrix inequality is investigated.

首先以线性矩阵不等式的形式给出了奇异时滞系统正则，无脉冲模且零解渐近稳定的一种新的时滞相关型判据。

First, a kind of 2-D Lyapunov inequality is proposed, and some new criteria for asymptotical stability of the systems are given.

首先提出了该类系统的一种Lyaptunov不等式，由此给出了该类系统渐近稳定的新的判别条件。

In this paper, through stability analysis based on a novel Lyapunov function and Lyapunov's direct method, the sufficient conditions of global asymptotical stability and the deductions are given.

文中引入一种新的 Lyapunov 预选函数，采用 Lyapunov 直接法研究系统的稳定性问题，得到了系统全局渐近稳定的充分条件及推论。

The proposed method is applied to Sepic converter, Lyapunov's function is constructed successfully and an asymptotic stable control law is obtained, simulation results confirm the effectiveness of the proposed control law.

以Sepic变换器为例，成功构造出Lyapunov函数，并且推导得到一种使Sepic变换器控制系统渐近稳定的控制律，仿真结果证实了该文提出的新型控制律的有效性。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。