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Planar graphs without 4-cycles and intersecting triangles are [formula omitted]-colorable.

Authors :
Li, Xiangwen
Liu, Runrun
Yu, Gexin
Source :
Discrete Applied Mathematics. Dec2021, Vol. 304, p236-247. 12p.
Publication Year :
2021

Abstract

For a set of nonnegative integers c 1 , ... , c k , a (c 1 , c 2 , ... , c k) -coloring of a graph G is a partition of V (G) into V 1 , ... , V k such that for every i , 1 ≤ i ≤ k , G [ V i ] has maximum degree at most c i. In this paper, we prove that all planar graphs without 4-cycles and intersecting triangles are (1 , 1 , 0) -colorable. [ABSTRACT FROM AUTHOR]

Subjects

Subjects :
*PLANAR graphs
*TRIANGLES
*INTEGERS

Details

Language :
English
ISSN :
0166218X
Volume :
304
Database :
Academic Search Index
Journal :
Discrete Applied Mathematics
Publication Type :
Academic Journal
Accession number :
152607526
Full Text :
https://doi.org/10.1016/j.dam.2021.07.028