On L(2,1)-Labelings of Oriented Graphs

被引:0
作者
Colucci, Lucas [1 ]
Gyori, Ervin
机构
[1] Hungarian Acad Sci, Alfred Renyi Inst Math, Realtanoda U 13-15, H-1053 Budapest, Hungary
基金
巴西圣保罗研究基金会;
关键词
L(2; 1)-labeling; directed graphs; LABELING GRAPHS; NUMBER;
D O I
10.7151/dmgt.2240
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
We extend a result of Griggs and Yeh about the maximum possible value of the L(2, 1)-labeling number of a graph in terms of its maximum degree to oriented graphs. We consider the problem both in the usual definition of the oriented L(2, 1)-labeling number and in some variants we introduce.
引用
收藏
页码:39 / 46
页数:8
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