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 正则覆盖 的翻译结果: 查询用时：0.019秒
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 正则覆盖
 normal covering
 By the use of group action and normal covering we give an answer in some conditions from topological rigidity theorem in this article. 本文通过群作用和正则覆盖,利用拓扑刚性定理对此问题给出一个判定性条件. 短句来源
 相似匹配句对
 Covers for Regular  semigroups 正则~*-半群的覆盖 短句来源 s-Regular Cyclic Coverings of Heawood Graph Heawood图的s-正则循环覆盖 短句来源 S-REGULAR SEMIGROUPS S-正则半群 短句来源 Q-Regular Spaces q-正则空间 短句来源 On a Covering Problem 一个覆盖问题 短句来源

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 regular covering
 Let M be a projective manifold, p: MG→M a regular covering over M with a free Abelian transformation group G. Let X be a finite connected CW-complex and ρ:[InlineMediaObject not available: see fulltext.] a regular covering space with free abelian covering transformation group. If the trigonal morphism is a cyclic regular covering, the Riemann surface is called cyclic trigonal Riemann surface. The construction leads to the description of a family of nilpotent spacesX0,X1,...,Xs-1, all in the same genus, no two of the same homotopy type, such that eachXi covers its successor as a cyclicl-sheeted regular covering; of course,Xs-1 coversX0. By the above two propositions, the theorem is true if it is a regular covering. 更多
 regular coverings
 Let π1:K→H, π2:H→G and π2π1:K→G be three finite regular coverings of graphs, and let σ be a representation of the covering transformation group of π1. In this paper, we classify the half-arc-transitive regular coverings of the complete bipartite graph K4,4 whose covering transformation group is cyclic of prime-power order and whose fibre-preserving group contains a half-arc-transitive subgroup. It has property Cr if the above is true for all regular coverings.
 In this paper authors use the concepts of cs-networks, sequential-neighbor- hood networks, sequential-open networks and weak bases, discuss the relations among point-regular covers, uniform covers and point-star networks of point-finite covers in spaces, and establish the characterizations of images of metric spaces under some sequence-covering (compact) mappings. In particular, it is shown that the image of metric spaces under sequence-covering (or 1-sequence-covering) compact mappings is equivalent to the... In this paper authors use the concepts of cs-networks, sequential-neighbor- hood networks, sequential-open networks and weak bases, discuss the relations among point-regular covers, uniform covers and point-star networks of point-finite covers in spaces, and establish the characterizations of images of metric spaces under some sequence-covering (compact) mappings. In particular, it is shown that the image of metric spaces under sequence-covering (or 1-sequence-covering) compact mappings is equivalent to the space with point-regular cs-networks, which answers a Tanaka's question. 本文利用了ｃｓ网、序列邻域网、序列开网和弱基的概念，讨论了空间中点正则覆盖，一致覆盖和点有限覆盖的点星网之间的关系．建立了度量空间在几类序列覆盖（紧）映射下象空间的特征，特别地证明了度量空间的序列覆盖（或１序列覆盖）紧映象等价于具有点正则ｃｓ网的空问，回答了Ｔａｎａｋａ等提出的一个问题． We use a new linear criteria for lifting automorphisms of base graph to the covering graphs to classify all the connected vertex-transitive regular coverings of Petersen graph satisfying the following two properties: ① the covering transformation group is isomorphic to the elementary abelian p-group Zn p; ② the group of fiber-preserving automorphisms of coverings acts vertex-transitively. 运用基图自同构能被提升的线性准则 ,对满足 :1覆叠变换群 K =Znp,2覆盖图的保簇变换群是点传递的 Petersen图的连通正则覆盖图进行了完全分类 .这种图共有 1 2种类型 . The invariants which determine the graphs is discussed according to the theory of group,then the formula for the characteristic polynomials of an oriented regular covering of a finite digraph and the formula for the characteristic polynomials of an oriented total graph of an oriented regular covering is obtained. 借助于群理论讨论了图的不变量,得到了有向图的正则覆盖及其有向全图的特征多项式的表达式.
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