英语人>网络例句>periodic 相关的网络例句
periodic相关的网络例句

查询词典 periodic

与 periodic 相关的网络例句 [注:此内容来源于网络,仅供参考]

For a continuous map of trees or graphs to itself, we show the properties that every isolated chain recurrent point is an eventually periodic point, and an isolated chain recurrent point which is not in the orbit of a critical point and has no critical point in its orbit is a periodic point.

第三章主要讨论一些特殊连续统上连续自映射的孤立链回归点与最终周期点之间的关系,证明了对树或图上连续自映射,孤立链回归点是最终周期的,且如孤立链回归点不在临界点的轨道中,也无临界点在其轨道中,则此点必为周期的。

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。

A sufficient condition is obtained to ensure the existence and uniqueness of almost periodic solution for MAM neural network with time-varying delays by way of exponential dichotomy and contraction map theorem. Moreover, the global exponential stability of the almost periodic solution for this type of MAM neural network is proved by using Halanay inequality.

利用指数二分法结合运用压缩映射原理获得了变时滞多向联想记忆神经网络模型概周期解的唯一存在性,利用Halanay不等式证明了变时滞多向联想记忆神经网络概周期解的全局指数稳定性。

The existence of periodic solutions for a class of impulsive differential equations of mixed type is studied by constructing periodic sequence solutions of difference equations.

通过构造差分方程的周期序列解,研究了一类混合型脉冲微分方程周期解的存在性。

What differ from that of the researchers in the past is the consideration of the direction of Hopf bifurcation with Dirichlet boundary condition , that is, the conditions when the Hopf bifurcation periodic solutions are orbitally asymptotically stable with asymptotic phase.Our basic idea come from the results given by Tang[30]. We adopt the method used by Hassard in the Hopf bifurcation theorem in [24], which is to judge the existence and the direction of Hopf bifurcation, and the stability of the Hopf bifurcation periodic solutions.

与以前的研究者不同的是,本文不仅讨论了在Dirichlet边界条件下系统的Hopf分支在以扩散系数为分支参数的情况下的存在性和分支周期解的空间非齐次性,而且更多的关注了系统在Dirichlet边界条件下Hopf分支解的稳定性及Hopf分支的方向,也即系统定态解在何种条件下,当分支参数如何变化时产生Hopf分支且分支周期解是带渐近位相轨道渐近稳定的。

In Chapter 1, we use the upper and lower solutions method, the bootstrap technique and the Schauder fixed point theorem to investigate the existence of periodic solutions and the asymptotic behavior of general time-dependent solutions for periodic reaction-diffusion systems of the following three types:(1) Quasimonotone nondecreasing system;(2) Mixed quasimonotone system;(3) A nonquasimonotone 2-system. The boundary conditions are assumed to be either the Dirichlet condition or linear Robin conditions.

在第一章,我们应用上、下解方法,bootstrap技巧和Schauder不动点定理考察如下三类周期反应扩散方程组的周期稳态解的存在性和一般的时变解的渐近性态:(1)拟单增系统;(2)混拟单调系统;(3)一个非拟单调2-系统,其边界条件是Dirichlet条件或线性Robin条件。

PartⅡ,Applying the developed and extended direct algebraic methods that presented in recent years and based on the 2+1 dimensional variable separation solutions,abundant Jacobi elliptic function doubly periodic waves and periodic propagating wave patterns for many 2+1 dimensional nonlinear wave models are obtained,and in long wave limit solitary waves are derived as well.

第二部分,本文拓展和推广(来源:a2AB7aC论文网www.abclunwen.com)了新近发展的几种典型的直接代数方法和基于分离变量解的间接方法,获得多个2+1维非线性波动模型丰富的雅克比椭圆函数双周期波解和周期传播波模式,并得到长波极限情形下存在的非线性孤立波。

Firstly, we consider SIQR epidemical models with continuous and pulse vaccinations; the reproduction numbers have been obtained for those models; by using Dulac function, we prove the global stabilities of equilibrium of SIQR model with continuous vaccination. In the SIQR epidemical models with pulse vaccinations, we have also discussed the existence of the infection-free periodic solution, the global stabilities of the infection-free periodic solutions, and the effectiveness of pulse vaccination and continuous vaccination policies has been compared for the two models.

文中首先考虑具有连续免疫接种和脉冲免疫接种的SIQR传染病模型,分别获得了它们各自的基本再生数;利用Dulac函数方法证明了具有连续免疫接种的SIQR模型无病平衡点的全局渐近稳定性;在脉冲免疫接种下SIQR传染病模型里,讨论了无病周期解的存在性,证明了该周期解的全局渐近稳定性,并且对连续和脉冲接种下的SIQR传染病模型的接种效率进行了比较。

Nonlinear flexural wave equation is solved by the Jacobi elliptic function expansion method. Two kinds of exact periodic solutions of the nonlinear equations are obtained, that is, the shock wave solution and the solitary wave solution. The necessary condition for existence of exact periodic solutions, shock solution and solitary solution is discussed, which is consistent with the qualitative analysis.

利用Jacobi椭圆函数展开法,对该非线性方程进行求解,得到了非线性波动方程的准确周期解及相对应的孤波解和冲击波解,讨论了这些解存在的必要条件,这与定性分析的结果完全相同。

For a monotone twist map the well-known Birkhoff fixed point theoremsays that the circles with rational rotation number will break up whence a finitenumber of pairs of periodic points arise,half of which are elliptic and the othershyperbolic.Moreover,around each elliptic periodic point a few of new invariantcurves will appear and make a picture of phase space with a self-similar structure.Again one may ask is there a similar picture for higher dimensional Hamiltoniansystems?

对于单调扭转映射,著名的Birkhoff不动点定理指出,在通有情况下旋转数为有理数的不变曲线一般会破裂,在原来的不变曲线附近会产生有限多对周期点,其中一半是双曲的,一半是椭圆的,而在椭圆型周期点的周围又会产生一圈圈的不变曲线,使得椭圆周期点附近的动力学行为和整个相空间的动力学行为十分相象,换句话说,整个相空间具有无限嵌套的自相似结构,自然又产生了一个问题:对于自由度数目大于2的高维哈密顿系统,其相空间是否有类似的图象?

第5/147页 首页 < 1 2 3 4 5 6 7 8 9 ... > 尾页
相关中文对照歌词
10001110101
Development
Way Tight
Rip Vs. Poet Laureate (Director's Cut)
What's That Smell
Ravenous, Ravenous Rhinos
The Hypnotic
Who Will Save The Sane?
Evolution
推荐网络例句

Looking to bounce back from defeat against Cesena last weekend, the Calabrian boss will be sticking to his tried and tested 4-3-3, with Lopez and Sedivic joined up front in Giampaolo's absence by either Nanni or Plasmati.

鉴于上周末对切塞纳的比赛中反败为胜,这支南方球队将会更坚持其一贯而有效的4-3-3阵型,洛佩斯和塞德维奇将取代受伤缺席的詹保罗,和纳尼或者帕斯马蒂中的一个搭档锋线。

Meanwhile, their exposure to the more freewheeling ways of the West broadened dramatically.

另外,西方较自由的生活方式对年轻人的影响增大。

We are fed up with what the garrulous old lady said.

我们已经对那位爱唠叨的老太太所说的话感到厌烦了。