Title
Decomposing a planar graph without triangular 4-cycles into a matching and a 3-colorable graph
Abstract
Let c1,c2,…,ck be non-negative integers. A graph G is (c1,c2,…,ck)-colorable if the vertex set of G can be partitioned into k sets V1,V2,…,Vk, such that G[Vi], the subgraph induced by Vi, has maximum degree at most ci for i∈[k]. In this paper, we prove that every planar graph without triangular 4-cycles is (1,1,1)-colorable. Consequently, such planar graphs can be decomposed into a matching and a 3-colorable graph.
Year
DOI
Venue
2019
10.1016/j.dam.2019.04.026
Discrete Applied Mathematics
Keywords
Field
DocType
Planar graph,Bad cycles,Superextension,Discharging
Integer,Graph,Discrete mathematics,Combinatorics,Vertex (geometry),Degree (graph theory),Mathematics,Planar graph
Journal
Volume
ISSN
Citations 
268
0166-218X
0
PageRank 
References 
Authors
0.34
0
3
Name
Order
Citations
PageRank
Ziwen Huang101.69
Runrun Liu285.29
Gaozhen Wang300.34