In this paper, we discuss point arboricity of line graphs and obtain some bounds of point arboricity of line graphs.
文中讨论了线图的荫度，得到了线图荫度的若干界。
2
The thesis is divided into two parts, which consist of some results on list linear arboricity of cubic graphs and linear choosability of cubic graphs, respectively.
这篇论文分为两部分，分别讨论了三正则图的列表线性荫度和线性可选性。
3
In particular, some upper bounds of the vertex arboricity of the integer distance graph G(Z, D) are obtained when D is a set of positive integers and Z the set of all integers.