Maximum value of conflict-free vertex-connection number of graphs

Maximum value of conflict-free vertex-connection number of graphs
复制标题

图的无冲突顶点连接数最大值

DOI:
10.1142/s1793830918500593
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发表时间:
2018-10
期刊:
Discrete Mathematics, Algorithms and Applications
影响因子:
--
通讯作者:
Baoyindureng Wu
Baoyindureng Wu
中科院分区:
其他
文献类型:
--
作者:
Zhenzhen Li;Baoyindureng Wu

文献摘要

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一个顶点着色图中的路径称为无冲突的,如果有一个颜色正好用在它的一个顶点上。一个顶点着色图称为无冲突顶点连通图,如果图的任意两个顶点通过无冲突路径连接。无冲突顶点连接数,用[公式:见正文]表示,定义为使[公式:见正文]无冲突顶点连通所需的最小颜色数。Li et al. [图的无顶点连接,预印本(2017),arXiv:1705.07270v1[math.CO]]证明了对于阶[公式:见文字]的连通图[公式:见文字],[公式:见文字]。我们证实了该猜想是正确的,并提出了两个相关的假设。
A path in a vertex-colored graph is called conflict-free if there is a color used on exactly one of its vertices. A vertex-colored graph is said to be conflict-free vertex-connected if any two vertices of the graph are connected by a conflict-free path. The conflict-free vertex-connection number, denoted by [Formula: see text], is defined as the smallest number of colors required to make [Formula: see text] conflict-free vertex-connected. Li et al. [Conflict-free vertex-connections of graphs, preprint (2017), arXiv:1705.07270v1[math.CO]] conjectured that for a connected graph [Formula: see text] of order [Formula: see text], [Formula: see text]. We confirm that the conjecture is true and poses two relevant conjectures.
DOI: 10.1137/120880471
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影响因子: --
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