纤维丛
- 网络Fiber Bundle;Fibration
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纤维丛全空间的Wall阻碍
Wall obstruction of the total space of a fiber bundle
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纤维丛Poisson结构及其在力学上的应用
Fiber bundle Poisson structure and its application in analytic mechanics
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纤维丛表述的两种DeSitter引力的探讨
An Approach to Two Types of de Sitter Gravities in Terms of Fiber Bundles
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纤维丛上的Poisson结构
Poisson Structures on Fibre Bundles
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考虑了限制在球面S2上运动的三个质点的力学系统,该系统的构型空间是S2上的一个纤维丛。
A mechanics system consisting of three mass points on sphere S 2 is considered .
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上皮下和前基质层可见反光强烈的神经纤维丛,旁边偶见明亮的Langerhans细胞,形态不规则,细胞密度难以计算。
Nerve plexus at subepithelium and anterior stroma were prominent with strong brightness . Langerhans cells were occasionally visible , and cell density cannot be measured .
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建立了双重纤维丛P2(P1(M,U(1),U(1)),求得了统一引力、电磁和标量场的作用量和场方程,给出了标量场新的几何解释。
The double fiber bundle P2 ( P1 ( M , U ( 1 )), U ( 1 )) is set up in this article , We found the action and the field equations unified gravitation-electromagnetism-scalar fields . We gave a new geometrical interpretation to the scalar field .
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本文借助于规范理论的纤维丛表述,导出了在Kaluza-Klein理论中反映真空特性的标量场,从而为禁闭机制的场论分析提供了一个值得探讨的途径。
Scalar field which is associated with vacuum property in the theory of Kaluza-Klein is derived from the principal-bundle formulation of gauge theories A useful way with which a confinement mechanism is proposed in field theory can be analysed .
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纤维丛上一般非线性控制系统的几何框架及其最小实现理论
Geometric Framework and Minimal Realizations of Nonlinear Systems on Fibre Bundle
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基本粒子超对称性的纤维丛方法
A fibre bundle approach applied to the supersymmetry of elementary particles
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特殊纤维丛上微分动力系统的局部坐标表示
The Local Coordinate Representations of Differential Dyamic Systems on Special Fibre Bundle
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有关规范场与纤维丛关系问题的三次阐释
Three Ways to Research on Relationship between Gauge Fields and Fiber Bundles
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基于纤维丛表述的李变换群延拓群算子
Prolongation Operator of Lie Transformation Group of According to Fibre Bundle Express
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规范场与主纤维丛上的联络
The Yang-Mills fields and the connections of principle fibre bundles
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关于纤维丛的分类问题
On the classification problem of fibre bundles
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超空间及由其建立的纤维丛统一的超引力理论
The Superspace and Its Unified Supergravity Theory
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纤维丛的黎曼度量
The Riemannian metric of fiber bundles
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最后在特殊纤维丛上建立了微分动力系统,进一步推导出了它们的局部坐标表示。
Finally , the representations of local coordinate on the differential dynamic systems of some fibre bundles are deduced .
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关于黎曼空间的切纤维丛主丛与刚体运动
ON THE BUNDLES OF ORIENTED m-PLANES OF A RIEMANN SPACE . Principal Fibre Bundle and Motion of Rigid Body
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本文研究了底空间为实射影空间时上协边类纤维丛表示的若干性质。
In this paper we deal with some properties of cobordism classes of fiber bundles over the real projective space .
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设M~n,N~m是光滑闭流形,p:M~n→N~m为纤维丛投射。
Suppose Mn and Nm are closed smooth manifolds , p : Mn → Nm is the projection of fiber bundle .
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本文给出各种纤维丛微分几何结构的一个统一处理,首先引进了一个新定义;
The main purpose of this paper is to give a united treatment of the structure of differential geometry of various fiber bundles .
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他们报告微小逐渐的记忆力下降被发现存在纤维丛,当路易小体和中风将逐渐记忆力下降的速率加倍时。
They report that minimal gradual memory declines were seen in the absence of tangles , while Lewy bodies and strokes doubled the rate of gradual memory loss .
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本文提出积流形李变换群延拓群的概念,并应用纤维丛方法解决延拓群算子中的系数问题,进而讨论其在黎曼流形中的一个应用。
In the article we advance the concept of prolongation group of Lie transformation group in a visual and pithy way , and resolve the coefficient problem of prolongation operator .
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本文构造了超引力的一种纤维丛统一理论模式,一些不同的超引力可看作该理论的具体应用。
In this paper a unified theory of supergravities is constructed by using the Fiber bundle technique and different types of supergravities can be considered as applications of this theory .
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分析了顶梳除具有梳理分离纤维丛尾端的作用外,同时形成附加摩擦力界,加强对分离纤维丛中浮游纤维的控制,以减少有效纤维的损伤。
Besides the functions of carding and separating fiber tail end , top comb can also form added friction fields that strengthen the control of float fibers to decrease fiber damage effectively .
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但是,外尔的这些工作是从黎曼几何过渡到纤维丛理论的一个重要环节,同时也是外尔从分析学转向李群理论的主要动因。
But the author argues that Weyl 's work in this field is not only an important historical linkage from Riemann geometry to fiber bundle but also a main incentive for his research diversion from analysis to Lie group .
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如何从纤维丛的底空间和纤维型的黎曼度量构造丛空间的黎曼度量,接着,定理1和定理2分别给出了向量丛和主丛关于这种度量的线素。
A new definition concerning the Riemannian metric of bundle spaces is given by using of the Riemannian metric of related base spaces and fibers . Theorem 1 and theorem 2 give the line elements of the metric for the vector bundles and for the principal bundles , respectively .
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此节发出纤维参与组成肾丛、腹主动脉丛和睾丸(卵巢)丛。
The fibre started from the ganglia formed part of the renal plexus , abdominal aortic plexus and testicular plexus .
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以材料损伤状态为底流形、变形状态为纤维建立了一个材料状态纤维丛模型。
In the present paper , a material model is proposed based on the fibre bundle theory for describing damage induced inelastic deformation .