RAINBOW CONNECTION NUMBER OF GRAPHS WITH DIAMETER 3

被引:10
|
作者
Li, Hengzhe [1 ]
Li, Xueliang
Sun, Yuefang
机构
[1] Nankai Univ, Ctr Combinator, Tianjin 300071, Peoples R China
关键词
edge-coloring; rainbow path; rainbow connection number; diameter;
D O I
10.7151/dmgt.1920
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
A path in an edge-colored graph G is rainbow if no two edges of the path are colored the same. The rainbow connection number rc(G) of G is the smallest integer k for which there exists a k-edge-coloring of G such that every pair of distinct vertices of G is connected by a rainbow path. Let f(d) denote the minimum number such that rc(G) <= f(d) for each bridgeless graph G with diameter d. In this paper, we shall show that 7 <= f (3) <= 9.
引用
收藏
页码:141 / 154
页数:14
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