查询词典 compact convergence

In 1986, H. Gauchman proved another famous rigidity theorem for compact minimal submanifolds in a sphere: Let M be an n-dimensional compact minimal subman-ifold in S~(1), if σ≤ 1/3 holds for any unit vector u ∈ UM, then either σ≡ 0, i.e..

若对任意单位切向量u∈UM，有σ≤1／3，其中σ=‖h‖~2，则σ≡0，即M是全测地子流形；或者σ≡1／3，并且要完全确定这类极小子流形的几何结构。

For compact hypersurfaces and highcodimension compact submanifolds initial data respectively, we prove that the flow hasa smooth solution for all time under almost optimal conditions. Those conditions arethat the second fundamental form on the initial submanifolds is not too large, the exter-nal force field, with its any order derivatives, is bounded, and the field is convex with itseigenvalues satisfying a pinch inequality.

我们分别对紧超曲面初值和高余维紧子流形初值证明了当初始曲率比较小，并且外力场除了要各阶导数一致有界外，还要满足凸性条件以及特征值的一个pinch条件时，这种热流的光滑解长时间存在。

Through the reaseach about process make clear: Compacting slowly and equally as common single-action pressing, also can produce good anvil compact. Pattern about ejection process gradually with 0.5mm/sec and top punch hold down can avoid compact crack by spring back.

工艺研究表明：普通单向压制时缓慢而匀速地加压，可制备出质量较好的顶锤压坯，在脱模时以预负荷和≤0.5毫米/秒的渐开模方式可避免弹性后效造成压坯裂纹。

We avoid of assuming that the interior of the ordering cone is not empty and the cone has a compact base or a weakly compact base, but consider Benson proper efficiency in the framework of sparable locally convex metric spaces.

本文回避了以往需要序锥内部非空并且有紧基或弱紧基的条件，转而把目光从局部凸拓扑向量空间投向可分局部凸距离空间，在这个框架下，先利用Polarity定理给出了Benson真有效点的标量化定理。

Several profile suction pipes with different double slots are developed and applied to spin cotton yarns of same fineness. Though comparing the structure and performance of this cotton yarn with that of yarns by the compact spinning or the Siro spinning, the advantages of compact Siro spinning are further indicated.

用自行研制的具有不同吸风双槽的紧密赛络纺吸风管分别纺制相同线密度的棉纱，并与相同工艺条件下的紧密纺和赛络纺纱线就纱线结构与性能进行比较分析，进一步说明紧密赛络纺纱工艺的优越性。

In the course of the extension of subsoiling mini-till,small shar-ed subsoiler is screened from 8 kinds of tillage practices to carry outshallow plowing and interval subsoiling,shallow plowing is 7-8 cmdeep.and at the interval of 35 cm,the subsoiling is 20-35cm deep.Thus,the co-exitence of loose and compact tilths is created(ratiobetween the loose and compact tilths is 3:4).Owing to the unchan-ge of surface soil position,water,fertilizer,aeration and heat are incoordination,and yield increase is stable.when...

在试验推广深松少耕法的过程中，从八种耕作措施中筛选出用小铧杆尺深松犁，进行浅翻间隔深松，浅翻7—8厘米，间隔35厘米，深松20—35厘米，创造的虚实并存的耕层(虚实比8∶4)，由于表土位置不变，水、肥、气、热协调，增产效果稳定，种小麦、大豆平均增产分别为21.6%和15.5%；而且还有节省油料、降低成本，不用大量增添新的耕作机具的优点，并具有明显的抗旱、抗涝、防止土壤风蚀、水蚀的结果。

We examine the super compact symmetric finite difference scheme and compare it with traditional difference methods and compact difference methods.

0引言在流体动力学领域，很多物理现象，如湍流，其空间和时间的尺度变化剧烈，要正确模拟这类问题需要高精度方法。

In this paper the authors study proprieties of certain convolution operators on L and weighted BMO spaces,where G is a locally compact totally disconnected group with a suitable sequence of open compact subgroups.

本文主要讨论了定义在局部紧的全不连通群G上的一类卷积算子在加权L和BMO空间的性态。

The structure of uncured mix and vulcanite, physical and chemical interaction between filler and matrix, mechanical property of composites were investigated It was found and explained that the compact relationship among bound rubber, cross-linkage density and physical property in mineral filler/silicone rubber composite In detail, BR〓, D〓(cross-linkage density using basic solvent as swell liquid) and module have direct relationship, because they all show chemical interaction between filler and matrix from different angles, respectively BR〓(bound rubber in toluene solvent), D〓(cross-linkage density using toluene solvent as swell liquid) and tensile strength have compact relationship also, because they all show total interaction from different angles, respectively

研究了未硫化胶和硫化胶的结构、填料与基体的物理化学作用、及这些结构和作用的表现形式，发现和解释矿物填料/硅橡胶复合材料中结合橡胶、交联密度与复合材料的力学性能密切关系。具体说，BR〓、D〓和弹性模量均从某个侧面反映复合材料中填料与基体间的化学作用，三者的关系比较密切：BR〓、D〓和抗拉强度均反映复合材料中填料与基体间总体相互作用，三者的关系比较密切。

On the Hardy space and Bergman space with parameter 1, we find that the weighted composition operators are compact if and only if they are weakly compact.

对于参数为1的Hardy空间H〓和Bergman空间L〓，证明了其上定义的加权复合算子的紧性与弱紧性是等价的。

There had been a moment during the breakfast meeting, though, after the backslapping and the small talk and when all of us were seated, with Vice President Cheney eating his eggs Benedict impassively and Karl Rove at the far end of the table discreetly checking his BlackBerry, that I witnessed a different side of the man.

那次早餐会期间，在表示过关心和寒暄以后，我们所有人坐了下来，我注意观察了一下，副总统切尼面无表情地吃着班尼迪克蛋（Eggs benedict，源自美国，以英式松饼、火腿、水煮蛋以及荷兰酱组合而成），卡尔。罗夫在餐桌的远端谨慎地经常查看他的黑莓手机，我目睹了他所不为人知的一面。

Talk Undelete failed; someone else may have undeleted the page first.

Talk 无法删除选定的页面或图像（它可能已经被其他人删除了）。