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- the k - th mean curvature 第k个平均曲率
- In this paper,the geometry of submanifolds with parally mean curvature vector in a locally symmetric, conformally falt Riemannian manifold is studied. 本文研究局部对称共形平坦黎曼流形中具有平行平均曲率向量的紧致子流形的性质。
- We present a smoothing algorithm based on the main direction combined with mean curvature flow and normal filter method. 本文主要提出了基于主方向的平滑算法,并结合平均曲率流算法和法向滤波算法进行了改进。
- A method is used to approximate several differential properties, including mean curvature, Guassian curvature and main curvature on scattered-point-sampled surfaces. 摘要提出一种直接在散乱数据点云上计算曲面的局部微分性质,包括平均曲率、高斯曲率和主曲率。
- This paper discusses submanifolds with parallel mean curvature vector in local symmetric spaces and obtains integral invariants about the square of modulus-length. 讨论局部对称空间中具有平行平均曲率向量的子流形;得到其关于第二基本形式模长平方的积分不等式的相关定理.
- The auther worked out a pinching theorem of compact pesudoumbilical submanifolds with parallel mean curvature vector in a locally symmetric conformally flat Riemannian manifolds. 摘要研究局部对称共形平坦黎曼流形中具平行平均曲率向量的紧致伪脐子流形,得到了这类子流形模长平方的一个拼挤定理。
- This paper discusses the space-like submanifolds with constant mean curvature in a pseudo-Riemannian space form,and obtain an integrate inequality and a rigidity theorem. 本文研究了伪黎曼空间型中具有常平均曲率的类空子流形,得到了这类空子流形的一个积分不等式及刚性定理。
- There is no walk satisfying the conditions of the K??igsberg bridge puzzle. 不存在满足哥尼斯堡桥问题的条件的通道。
- As corollaries, some pinching problems on the submanifolds with parallel mean curvature vector in a unit sphere are discussed, which improves results obtained before. 作为推论,讨论了单位球面中具有平行平均曲率向量的子流形的第二基本形式长度的拼挤问题,改进了已有的结论。
- By the algebraic estimation to the Simons-Formula, a result of submanifolds with parallel mean curvature vector in a conformally flat Riemannian manifold is provided. 通过对共形平坦空间中的Simons公式的代数估计,得到其中具有平行平均曲率向量的紧致子流形的一个拼挤性质。
- It should be obvious, but when they say the K Swiss Appian men``s athletic inspired shoes feature a herringbone tread pattern, that doesn``t mean they have fish skeletons attached to the outsoles. 星辉简介 星辉正在帮助中国的消费者实现“足不出户,买遍世界!”
- In this paper, we mainly discuss a kind of surfaces in4- dimensional Pseudo-Euclidean Space and give the classification of such surfaces with constant mean curvature and Gauss curvature. 文章研究四维伪欧氏空间中的一类曲面;给出了具有常平均曲率、高斯曲率及相关平均曲率和高斯曲率的这类曲面的分类.
- Another measure of holdup is the k factor used by Bankoff in connection with the bubble flow pattern in gas-liquid flow. 滞留现象的另一个度量是Bankoff在气-液流动的泡状流型中所采用的因数K。
- By power we mean the rate of doing work. 我们说功率就是指做功的速率。
- The office floors above are dramatically cantilevered over the K Street frontage, creating an "open" pedestrian arcade. 该办公室楼层以上急剧悬臂以上的K街临街,创造一个"开放式"行人拱廊。
- The wind whirled the dead leaves about. 风吹得枯叶在四处回旋。
- The wind was whispering in the trees. 一阵风穿过树林沙沙作响。
- The superstitious yto an put the k priority on the superficial supersonic superiority. 迷信的人把优先权放在表面的音速的优良上。
- There are 26 letters in the English alphabet. 英语字母表中有26个字母。
- The relationships between the intrinsic arid the extrinsic invariants of submanifolds in generalized complex space forms are studied, and the inequalities of the mean curvature and an intrinsic invariant are obtained. 摘要讨论了广义复空间形式的子流形的内蕴不变量与外蕴不变量之间的关系,利用高斯方程得到了子流形的平均区率这个外蕴不变量与一个内蕴不变量之间的不等式结论,给出了等式成立的充分必要条件。