journal6 ›› 2012, Vol. 33 ›› Issue (4): 31-36.DOI: 10.3969/j.issn.1007-2985.2012.04.007

• 数学 • 上一篇    下一篇

一类变换图的距离性质

  

  1. (福建船政交通职业学院,福建 福州 350007)
  • 出版日期:2012-07-25 发布日期:2012-09-11
  • 作者简介:金晶晶(1983-),男,福建仓山区人,福建船政交通职业学院讲师,硕士,主要从事组合数学与图论研究.

Distance  Properties of a Class of  Interchange Graph

  1. (Fujian Chuanzheng Communications College,Fuzhou 350007,Fujian China)
  • Online:2012-07-25 Published:2012-09-11

摘要:求得一类变换图G(R*,S*)(其中R*=(r1,r2),S*=(1,…,1))的直径为r,证明了对于G(R*,S*)中任意2个距离为k的点,恰存在k2条内部不交的最短路联结这2个点,并且最多存在r1 n-r1〗条内部不交的路联结这2个点.

关键词: 变换图, (0,1)-矩阵;向量;直径;距离

Abstract: The diameter of G(RS*)   is r,where R*=(r1,r2),S*=(1,…,1),and it comes to a conclusion that for any two vertices of G(R*,S*) with distance k,there are exactly k2 internally-disjoint paths connecting them and that there are at most r1  n-r1 internally-disjoint paths connecting them.

Key words: interchange , graph;(0,1)-matrix;vector;diameter;distance

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