查询词典 contraction

In this paper, by using fixed point theorems of strict set contraction mapping, we study two kinds of boundary value problems for compact type conditions in Banach spaces.

中文摘要：本文利用严格集压缩映象的不动点定理分别讨论了紧型条件下的两类Banach空间边值问题。

To our knowledge, this is the first work for the existence of periodic solutions for neutral systems by generalized Schaefer fixed point theorem of seperate contraction mapping.

第四章，讨论了两类依赖于参数的泛函微分系统，用锥上的Deimling不动点定理，证明了系统的正周期解的个数与参数的取值以及非线性项的渐近行为有关。

In the solution of the problems in algebraic equation, differential equation and integral equation, we usually resort the sotution of equation to the fixed point of mapping in metric space. The contraction mapping principle can be used to solve many problems of the existence and uniqueness of equation solution.

在代数方程、微分方程和积分方程的求解问题中，通常把所求的解归结为度量空间中映射的不动点，然后应用压缩映象原理来统一处理许多方程解的存在性和唯一性问题。

Firstly, by constructing the Lyapunov function with a special structure, a prior estimate is obtained. Secondly, with the help of Green\'s function, the original problem is transformed into an equivalent operator equation, and the fixed point theory of contraction mapping in a Banach space guarantees the existence and uniqueness of the global solution.

首先，构造具有特殊结构的Lyapunov函数，得到解的先验估计；其次，借助Green函数将原方程等价变换成算子方程，Banach压缩映射的不动点定理保证了全局解的存在唯一性；最后通过常微分方程的定解，证明了主要结论，即平凡解全局渐近稳定。

Within the belt,folds,lens,structural foliation and small faults are developed and indicates the syn-collision contraction.

带内主要发育褶皱、透镜体、构造面理和小型断裂，反映同碰撞过程中的挤压变形。

This article constructs economic growth pressure indicator reflecting economic fluctuation. Through discrete choice and response probability graph, this article makes early warning on domestic macroeconomic expansion and contraction, and draws conclusions that foreign exchange reserve rate, foreign direct investment growth rate and total trade growth rate effectively forebode macroeconomic process.

我们构造了体现经济波动的经济增长压力指数，并利用离散选择模型Probit及反应概率图等经济计量方法，基于国际收支对国内宏观经济扩张和收缩的景气状况进行了预警，得出了外汇储备增长率、外商直接投资增长率和贸易总额增长率可以有效地预示宏观经济运行状态的结论。

It has been expounded and verified that AY can only be a fruitage of the process accumulation of the difference in physical elapsed-time caused by the different intrinsic-real velocity of physical clocks between the traveler and earth mainly in the two inertial phases,the Lorentz-Filtzgerald Contraction; which denies the SR's Key Gene and reveals:（1）The Absolute Reference System must objective-uniquely exist in the universe, and ①the Lorentz effect of whole universe relative to ARS all are IRPCE,②the time-space of ARS is isotropic and steady-homogeneous.

这是关于物理时空理论问题的第一个最重要的关键性奥秘！它彻底否定了KGS，揭示了"绝对参照系和相对于ARS的Lorentz-Filtzgerald效应客观存在的必然性"，表明狭义相对论是核心灵魂缺失了的片面性理论。

It is noted that the fundamental frequency of dams with keyed contraction joints increases when monolith interaction is included.

实验发现当涵盖了坝段相互作用时，带有键控伸缩缝的大坝的基频会增加。

While nowadays, uterine contraction of many primipara is good, the colour and quantity of lochia is normal. Drinking tablespoon grenadine for a long time will produce more lochia, cause chronic blood loss anemia as well as make bad influence on uterine recovery and health of delivery woman.

但目前多为初产妇，子宫收缩一般都较好，恶露的颜色和量一般都比较正常，如果食用红糖时间过长，反而会使恶露增多，导致慢性失血性贫血，而且会影响子宫恢复以及产妇的身体健康。

METHODS: Action potentials and force of contraction were studied with conventional techniques in guinea-pig papillary muscles.

使用传统方法测量了豚鼠乳头肌的动作电位和收缩力。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。