Spanning trees with at most k leaves in K1,4-free graphs

被引:28
作者
Kyaw, Aung [1 ]
机构
[1] Dugan Univ, Dept Math, Yangon 11422, Myanmar
关键词
Spanning tree; Leaf; Degree sum; K-1; K-4-free; Spanning t-ended system;
D O I
10.1016/j.disc.2011.06.025
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
We obtain a sufficient condition for K-1,K-4-free graphs to have spanning trees with at most k leaves, as a generalization of the condition of Kyaw [A. Kyaw, Spanning trees with at most 3 leaves in K-1,K-4-free graphs, Discrete Math. 309 (2009) 6146-6148] for K-1,K-4-free graphs to have spanning trees with at most 3 leaves. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码:2135 / 2142
页数:8
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