The list chromatic index of simple graphs whose odd cycles intersect in at most one edge

被引:1
|
作者
McDonald, Jessica [1 ]
Puleo, Gregory J. [1 ]
机构
[1] Auburn Univ, Dept Math & Stat, Auburn, AL 36849 USA
关键词
Edge list coloring; Kernel-perfect orientation; Line graph; 2-connected; Chromatic index; Odd cycles; LINE-GRAPHS; CHOOSABILITY;
D O I
10.1016/j.disc.2017.11.012
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
We study the class of simple graphs g* for which every pair of distinct odd cycles intersect in at most one edge. We give a structural characterization of the graphs in g* and prove that every G is an element of g* satisfies the list-edge-coloring conjecture. When Delta(G) >= 4, we in fact prove a stronger result about kernel-perfect orientations in L(G) which implies that G is (m Delta(G) : m)-edge-choosable and Delta(G)-edge-paintable for every m >= 1. (C) 2017 Elsevier B.V. All rights reserved.
引用
收藏
页码:713 / 722
页数:10
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