Title
Maximum edge-colorings of graphs.
Abstract
An r-maximum k-edge-coloring of G is a k-edge-coloring of G having a property that for every vertex v of degree d(G)(v) = d, d >= r, the maximum color, that is present at vertex v, occurs at v exactly r times. The r-maximum index chi(r)' (G) is defined to be the minimum number k of colors needed for an r-maximum k-edge-coloring of graph G. In this paper we show that chi(r)' (G) <= 3 for any nontrivial connected graph G and r = 1 or 2. The bound 3 is tight. All graphs G with chi(1)' (G) = i, i = 1, 2, 3 are characterized. The precise value of the r-maximum index, r >= 1, is determined for trees and complete graphs.
Year
DOI
Venue
2016
10.7151/dmgt.1843
DISCUSSIONES MATHEMATICAE GRAPH THEORY
Keywords
Field
DocType
edge-coloring,r-maximum k-edge-coloring,unique-maximum edge-coloring,weak-odd edge-coloring,weak-even edge-coloring
Edge coloring,Graph,Complete coloring,Discrete mathematics,Combinatorics,Fractional coloring,Brooks' theorem,Mathematics
Journal
Volume
Issue
ISSN
36
1
1234-3099
Citations 
PageRank 
References 
1
0.35
1
Authors
2
Name
Order
Citations
PageRank
Stanislav Jendrol'128338.72
Michaela Vrbjarová281.64