Computer Engineering and Applications ›› 2010, Vol. 46 ›› Issue (26): 38-39.DOI: 10.3778/j.issn.1002-8331.2010.26.013

• 研究、探讨 • Previous Articles     Next Articles

Algorithm for computing rupture degree of unicycle graphs

LI Yin-kui   

  1. Department of Mathematics,Qinghai Nationalities College,Xining 810000,China
  • Received:2009-03-09 Revised:2009-07-10 Online:2010-09-11 Published:2010-09-11
  • Contact: LI Yin-kui

单圈图毁度的一个算法

李银奎   

  1. 青海民族学院 数学系,西宁 810000
  • 通讯作者: 李银奎

Abstract: The rupture degree of a noncomplete connected graph G is defined as r(G)=max{ω(G-X)-|X|-m(G-X):X?V(G),ω(G-X)>1},where ω(G-X) is the number of components of G-Xand[m(G-X) is the order of a largest component of G-X.As to the complete graph,its rupture degree is defined as n.An algorithm for computing the rupture degree of unicycle graphs is presented.

Key words: the rupture degree, unicycle graphs, recursive algorithm

摘要: G的毁度定义为r(G)=max{ω(G-X)-|X|-m(G-X):X?V(G),ω(G-X)>1},其中ω(G-X)表示G-X的连通分支数,m(G-X)表示G-X的最大连通分支的阶。对于一般图G,其毁度的计算为NPC问题。将单圈图的毁度计算问题转化为树或圈的计算问题,从而提供了一个单圈图毁度的计算方法。

关键词: 毁度, 单圈图, 递归算法

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