时滞

By using the method of an abstract continuous theorem of k-set contractive operator and some analysis technique. Sufficient conditions are derived for the existence of at least one strictly positive periodic solution of periodic two-species Lotka-Volterra competition dynamics systems with neutral delay and several deviating arguments.

利用k-集压缩算子抽象连续理论和某些分析技术，导出了此具有中立时滞和变差元的周期两种群Lotka-Volterra竞争动力系统至少存在一个严格正的周期解的充分条件。

Also, by using exponential dichotomy, contraction map theorem and matrix theory, some sufficient conditions are obtained to ensure the existence and global exponential stability of almost periodic solution for MAM neural network with distributed delays.

利用矩阵的谱半径、指数二分法结合运用压缩映射原理获得了分布时滞多向联想记忆神经网络模型概周期解的存在性，并在相同条件下证明了概周期解的全局指数稳定性。

The problem of H∞ control for a class of uncertain systems with time-delay is considered.

研究了一类不确定时滞系统的鲁棒H∞控制问题。

In Chapter 4,we study the controllability of differential systems with de-lay.

第四章中，我们研究了时滞系统的能控性问题。

By analysis of such models, a method, which is used to find out the region of convergence and to study the local stability for strong nonlinear system, are derived. Thus, we can consider the strong nonlinear neural networks using such method.

利用新的比较方法，考虑了具变时滞和常恢复率的同质人群HIV梯度传染病模型，得到了一个阈值，当阈值小于1时，疾病消除平衡点全局指数渐近稳定，当阈值大于1时，传染病平衡点存在唯一，同时得到该传染病平衡点局部指数渐近稳定的充分条件。

The problem of robust stability analysis for convex polytopic uncertain discrete-time systems with multiple-state delays is investigated.

研究了具有多重状态时滞的凸多面体不确定离散系统的鲁棒稳定性分析问题。

The sufficient conditions enabling a singular system with observer-based guaranteed cost controller to stabilize its linear state feedback is obtained by use of a new method in combination with the convex optimization theory.

通过基于状态观测器的线性状态反馈控制并采用一种新方法，结合凸优化理论得到了不确定广义时滞系统的最优保成本控制器的设计方法。

The LMI toolbox is introduced in detail, and a maximum delay bound is obtained by solving a corresponding convex optimization problem.

介绍了如何利用MATLAB软件中的LMI工具箱进行分析与设计，据此计算出最大的允许时滞界。

For linear time-delay systems with norm-bounded uncertainties or convex polyhedron uncertainties, a sufficient and necessary delay independent condition of quadratic stabilizability under certain robust H~?

讨论了具有范数有界不确定参数线性不确定时滞系统的指定衰减度鲁棒稳定的一个充分性判据以及设计状态反馈控制器使得闭环系统具有指定鲁棒衰减度的方法。

In this paper, we consider the optimal control problem of time-delayed forward-backward stochastic system when control set is convex.

本文研究了在控制集为凸集的情况下带时滞的正倒向随机控制系统的最优控制问题。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。