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完全对换图的广义3-连通度

张燕 阿依古丽·马木提

曲阜师范大学学报(自然科学版)2019,Vol.45Issue(1):1-6,6.
曲阜师范大学学报(自然科学版)2019,Vol.45Issue(1):1-6,6.DOI:10.3969/j.issn.1001-5337.2019.1.001

完全对换图的广义3-连通度

The Generalized 3-connectivity of Complete-transposition Graphs

张燕 1阿依古丽·马木提1

作者信息

  • 1. 新疆大学数学与系统科学学院,830046,新疆维吾尔自治区乌鲁木齐市
  • 折叠

摘要

Abstract

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) =SandE(Ti) ∩ E(Tj) =(O) for anyi,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 {κ (S) 丨 S (∈) V(G) and 丨 S 丨=k}.Complete-transposition graphs are a class of important Cayley graphs in networks.This paper shows that the generalized 3-connectivity of an n-dimensional complete-transpositiongraph CTn is n(n-1)/2-1,that is,for any three vertices in CTn,there exist n(n-1)/2-1 internally disjoint trees connecting them in CTn.

关键词

完全对换图/广义连通度/内部不交的S-树/邻点

Key words

complete-transposition graph/generalized connectivity/internally disjoint S-tree/neighbour

分类

数理科学

引用本文复制引用

张燕,阿依古丽·马木提..完全对换图的广义3-连通度[J].曲阜师范大学学报(自然科学版),2019,45(1):1-6,6.

基金项目

Natural Science Foundatoon of China(11361060). (11361060)

曲阜师范大学学报(自然科学版)

1001-5337

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