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由轮生成的Cayley图的广义3-连通度

The Generalized 3-Connectivity of Cayley Graphs Generated by Wheel Graphs
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摘要 令S?V(G),κG(S)表示图G中内部不交的S-树T1,T2,…,Tr的最大数目r,使得对任意i,j∈{1,2,…,r}且i≠j,有V(Ti)∩V(Tj)=S,E(Ti)∩E(Tj)=?.定义κk(G)=min{κG(S)|S?V(G),且|S|=k}为图G的广义k-连通度,其中k是整数,且2≤k≤n.令Sym(n)是在{1,2,…,n}上的对称群,T是Sym(n)的对换集合.G(T)表示点集是{1,2,…,n},边集是{ij|(ij)∈T}的图.若G(T)是一个轮图,则将Cayley图Cay(Sym(n),T)简记为WGn.主要研究由轮生成的Cayley图WGn的广义3-连通度,并证明κ3(WGn)=2n-3,其中n≥4. Let S?V(G) and κG(S) denote the maximum number r of internally disjoint S-trees T1,T2,…,Tr in graph G such that V(Ti)∩V(Tj)=S and E(Ti)∩E(Tj)=? for any i,j∈{1,2,…,r}and i≠j.For an integer k with 2≤k≤n,the generalized k-connectivity of a graph G is defined as κk(G)=min{κG(S)|S?V(G)and|S|=k}.Let Sym(n)be the symmetric group on{1,2,…,n}and T be a set of transpositions of Sym(n).Denote by G(T)the graph with vertex set{1,2,…,n}and edge set{ij|(ij)∈T}.If G(T)is a wheel graph,then simply denote the Cayley graph Cay(Sym(n),T)by WGn.In this paper,we study the generalized 3-connectivity of Cayley graphs generated by wheel graphs WGn,and prove that κ3(WGn)=2n-3,where n≥4.
作者 张燕 马木提·阿依古丽 ZHANG Yan;MAMUT Aygul(College of Mathematics and System Sciences,Xinjiang University,Urumqi 830046,Xinjiang)
出处 《四川师范大学学报(自然科学版)》 CAS 北大核心 2020年第3期345-349,共5页 Journal of Sichuan Normal University(Natural Science)
基金 国家自然科学基金(11361060和11701492)。
关键词 CAYLEY图 广义k-连通度 内部不交的S-树 Cayley graph generalized k-connectivity internally disjoint S-tree
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  • 1Akers S B,Krishnamurthy B.A group-theoretic model for symmetric interconnection networks[J].IEEE Trans Computers, 1989,38 (4) : 555-565.
  • 2师海忠.关于Star-网络的一个猜想.兰州大学学报:自然科学版,2007,43:199-200.
  • 3Bondy J A,Murty U S R.Graph theory with applications[M].New York : American Elserer, 1976.
  • 4Bigs N L.Algebraic graph theory[M].Cambridge:Cambridge University Press, 1993.
  • 5Bagherzadeh N,Dowd M,Nassif N.Embedding an arbitrary tree into the star graph[J].IEEE Trans Comput,1996,45:475-481.
  • 6Day K,Tripathi A.A comparative study of topological properties of hypercubes and star graphs[J].IEEE Trans Parallel Distrib Syst, 1994,5:31-38.
  • 7Jwo J S,Lakshmivarahan S,Dhall K S.Embedding of cycles and grids in star graphs[J].J Circuits Syst Comput, 1991,1(1 ):43-74.
  • 8Hsieh S Y,Chen G H,Ho C W.longest fault-free paths in star graphs with edge fauhs[J].IEEE Trans Comput, 2001,50(9) :960- 971.
  • 9Li T K.Cycle embedding in star graphs with edg fauhs[J].Appl Math Comput,2005,167:891-900.
  • 10Xu M,Hu X D,Zhu Q.Edge-bipancyclicity of star graphs under edge-fault tolerant[J].Appl Math Comput, 2006,183 : 972-979.

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