中文

关于含轻边或交替 2-圈的图的边划分的注记

组合数学 2018-09-11 v1 离散数学

摘要

Gα\mathcal{G}_{\alpha} 是一个遗传图类(即 GαGαG_{\alpha}\in \mathcal{G}_{\alpha} 的每个子图都属于 Gα\mathcal{G}_{\alpha}),使得 Gα\mathcal{G}_{\alpha} 中每个图 GαG_{\alpha} 的最小度至多为 1,或含有一条边 uvuv 满足 dGα(u)+dGα(v)αd_{G_{\alpha}}(u)+d_{G_{\alpha}}(v)\leq \alpha,或含有一个 2-交替圈。本文证明 Gα\mathcal{G}_{\alpha}α5\alpha\geq 5)中每个最大度为 Δ\Delta 的图都可边划分为两个森林 F1F_1F2F_2 和一个子图 HH,使得对 i=1,2i=1,2Δ(Fi)max{2,Δα+62}\Delta(F_i)\leq \max\{2,\lceil\frac{\Delta-\alpha+6}{2}\rceil\}Δ(H)α5\Delta(H)\leq \alpha-5

关键词

引用

@article{arxiv.1809.02799,
  title  = {A note on the edge partition of graphs containing either a light edge or an alternating 2-cycle},
  author = {Xin Zhang and Bei Niu},
  journal= {arXiv preprint arXiv:1809.02799},
  year   = {2018}
}

备注

This is a very preliminary version! If you find any topes or mistakes, please fell free to let us now. This paper is used for communication, and will not be published as it is in a journal