Title
On incidence coloring conjecture in Cartesian products of 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 , or ( c ) v u ź { e , f } . An incidence coloring of G is a coloring of its incidences assigning distinct colors to adjacent incidences. It was conjectured that at most Δ ( G ) + 2 colors are needed for an incidence coloring of any graph G . The conjecture is false in general, but the bound holds for many classes of graphs. We introduce some sufficient properties of the two factor graphs of a Cartesian product graph G for which G admits an incidence coloring with at most Δ ( G ) + 2 colors.
Year
DOI
Venue
2016
10.1016/j.dam.2016.04.030
Discrete Applied Mathematics
Keywords
Field
DocType
Incidence coloring,Cartesian product,Locally injective homomorphism
Complete coloring,Discrete mathematics,Combinatorics,Vertex (geometry),Fractional coloring,Bound graph,Cartesian product,List coloring,Brooks' theorem,Mathematics,Graph coloring
Journal
Volume
Issue
ISSN
213
C
0166-218X
Citations 
PageRank 
References 
2
0.41
10
Authors
3
Name
Order
Citations
PageRank
Petr Gregor117819.79
Borut Luzar24210.86
Roman Soták312824.06