中文

拓扑曲面上图的束缚数的上界

组合数学 2016-04-25 v2 离散数学

摘要

GG的束缚数b(G)b(G)是使得从GG中移除后得到的图的支配数大于GG的支配数的最小边数。我们证明,对于最大顶点度为Δ(G)\Delta(G)且可嵌入到亏格为hh的可定向曲面和亏格为kk的不可定向曲面上的图GG,有b(G)min{Δ(G)+h+2,Δ(G)+k+1}b(G)\le \min\{\Delta(G)+h+2, \Delta(G)+k+1\}。这推广了平面图和环面图的已知上界。

关键词

引用

@article{arxiv.1012.4117,
  title  = {Upper bounds for the bondage number of graphs on topological surfaces},
  author = {Andrei Gagarin and Vadim Zverovich},
  journal= {arXiv preprint arXiv:1012.4117},
  year   = {2016}
}

备注

10 pages; Updated version (April 2011); Presented at the 7th ECCC, Wolfville (Nova Scotia, Canada), May 4-6, 2011, and the 23rd BCC, Exeter (England, UK), July 3-8, 2011