Title
Note on incidence chromatic number of subquartic graphs.
Abstract
An incidence in a graph G is a pair (v, e) where v is a vertex of G and e is an edge of G incident to v. Two incidences (v, e) and (u, f) are adjacent if at least one of the following holds: $$(a) v = u, (b) e = f$$(a)v=u,(b)e=f, or $$(c) vu \\in \\{e,f\\}$$(c)vuź{e,f}. An incidence coloring of G is a coloring of its incidences assigning distinct colors to adjacent incidences. In this note we prove that every subquartic graph admits an incidence coloring with at most seven colors.
Year
DOI
Venue
2017
10.1007/s10878-016-0072-2
J. Comb. Optim.
Keywords
Field
DocType
Incidence coloring,Subquartic graph,Incidence chromatic number
Graph,Discrete mathematics,Combinatorics,Chromatic scale,Vertex (geometry),Incidence coloring,Mathematics
Journal
Volume
Issue
ISSN
34
1
1382-6905
Citations 
PageRank 
References 
1
0.37
8
Authors
3
Name
Order
Citations
PageRank
Petr Gregor117819.79
Borut Luzar24210.86
Roman Soták312824.06