Subcubic planar graphs of girth 7 are class I

被引:1
|
作者
Bonduelle, Sebastien [1 ]
Kardos, Frantisek [2 ,3 ]
机构
[1] ENS Rennes, Rennes, France
[2] Comenius Univ, Bratislava, Slovakia
[3] Univ Bordeaux, CNRS, LaBRI, F-33400 Talence, France
关键词
Planar graph; Subcubic graph; Edge coloring; MAXIMUM DEGREE-7; NP-COMPLETENESS;
D O I
10.1016/j.disc.2022.113002
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
We prove that planar graphs of maximum degree 3 and of girth at least 7 are 3-edge-colorable, extending the previous result for girth at least 8 by Kronk, Radlowski, and Franen from 1974. (C) 2022 Published by Elsevier B.V.
引用
收藏
页数:6
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