...
首页> 外文期刊>Journal of Algebraic Combinatorics >A classification of semisymmetric graphs of order 2p^3: unfaithful case
【24h】

A classification of semisymmetric graphs of order 2p^3: unfaithful case

机译:2p ^ 3阶半对称图的分类:不可靠的情况

获取原文
获取原文并翻译 | 示例
   

获取外文期刊封面封底 >>

       

摘要

A simple undirected graph is said to be semisymmetric if it is regular and edge-transitive, but not vertex-transitive. Every semisymmetric graph is a bipartite graph with two biparts of equal size. It was proved by Folkman in (J Comb Theory Ser B 3:215–232, 1967) that there exist no semisymmetric graphs of order (2p) and (2p^2), where (p) is a prime. For any distinct primes (p) and (q), the classification of semisymmetric graphs of order (2pq) was given by Du and Xu in (Comm Algebra 28:2685–2715, 2000). Naturally, one of our long-term goals is to determine all the semisymmetric graphs of order (2p^3), for any prime (p). All these graphs (Gamma ) are divided into two subclasses: (I) the automorphism group (hbox {Aut }(Gamma )) acts unfaithfully on at least one bipart; and (II) (hbox {Aut }(Gamma )) acts faithfully on both biparts. In Wang and Du (Eur J Comb 36:393–405, 2014), a group theoretical characterization for Subclass (I) was given by the authors. Based on this characterization, this paper gives a complete classification for Subclass (I).
机译:如果简单的无向图是规则的且具有边沿传递性,而不是顶点传递性,则称其为半对称的。每个半对称图都是具有两个相等大小的二部图的二部图。 Folkman在(J Comb Theory Ser B 3:215–232,1967)中证明,不存在阶数(2p)和(2p ^ 2)的半对称图,其中(p)是素数。对于任何不同的素数(p)和(q),Du和Xu在(Comm Algebra 28:2685–2715,2000)中给出了有序半对称图(2pq)的分类。自然,我们的长期目标之一是确定任意质数(p)的所有阶次(2p ^ 3)半对称图。所有这些图(Gamma)分为两个子类:(I)自同构组(hbox {Aut}(Gamma))忠实地作用于至少一个二等分; (II)(hbox {Aut}(Gamma))对两个两部分均忠实执行。在Wang和Du(Eur J Comb 36:393–405,2014)中,作者对子类(I)进行了小组理论表征。基于此特征,本文给出了子类(I)的完整分类。

著录项

  • 来源
    《Journal of Algebraic Combinatorics》 |2015年第2期|275-302|共28页
  • 作者

    Shaofei Du; Li Wang;

  • 作者单位

    School of Mathematical Sciences Capital Normal University and Beijing Center for Mathematics and Information Interdisciplinary Sciences">(1);

    School of Mathematical Sciences Capital Normal University and Beijing Center for Mathematics and Information Interdisciplinary Sciences">(1);

    School of Mathematics and Information Sciences Henan Polytechnic University">(2);

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Permutation group; Vertex-transitive graph; Semisymmetric graph;

    机译:排列组;顶点传递图;半对称图;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号