Title
On acyclically 4-colorable maximal planar graphs.
Abstract
An acyclic coloring of a graph is a proper coloring of the graph, for which every cycle uses at least three colors. Let G4 be the set of maximal planar graphs of minimum degree 4, such that each graph in G4 contains exactly four odd-vertices and the subgraph induced by the four odd-vertices contains a quadrilateral. In this article, we show that every acyclic 4-coloring of a maximal planar graph with exact four odd-vertices is locally equitable with regard to its four odd-vertices. Moreover, we obtain a necessary and sufficient condition for a graph in G4 to be acyclically 4-colorable, and give an enumeration of the acyclically 4-colorable graphs in G4.
Year
DOI
Venue
2018
10.1016/j.amc.2018.02.015
Applied Mathematics and Computation
Keywords
Field
DocType
05C15, Acyclically coloring, Enumeration, Locally equitable coloring, Maximal planar graphs, Necessary and sufficient condition
Graph,Combinatorics,Mathematical analysis,Enumeration,Quadrilateral,Mathematics,Planar graph,Acyclic coloring
Journal
Volume
ISSN
Citations 
329
0096-3003
1
PageRank 
References 
Authors
0.35
8
4
Name
Order
Citations
PageRank
Enqiang Zhu12511.99
Zepeng Li2209.07
Zehui Shao311930.98
Jin Xu423045.13