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Strong Chromatic Index of Outerplanar Graphs

open access: yesAxioms, 2022
The strong chromatic index χs′(G) of a graph G is the minimum number of colors needed in a proper edge-coloring so that every color class induces a matching in G. It was proved In 2013, that every outerplanar graph G with Δ≥3 has χs′(G)≤3Δ−3.
Ying Wang   +3 more
doaj   +4 more sources

Strong chromatic index of products of graphs [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2007
The strong chromatic index of a graph is the minimum number of colours needed to colour the edges in such a way that each colour class is an induced matching.
Olivier Togni
doaj   +5 more sources

A stronger bound for the strong chromatic index [PDF]

open access: yesElectronic Notes in Discrete Mathematics, 2015
We prove χ′s(G) ≤ 1.93 Δ(G)2 for graphs of sufficiently large maximum degree where χ′s(G) is the strong chromatic index of G. This improves an old bound of Molloy and Reed. As a by-product, we present a Talagrand-type inequality where we are allowed to exclude unlikely bad outcomes that would otherwise render the inequality unusable.
Henning Brühn
exaly   +3 more sources

The strong chromatic index of 1-planar graphs [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science
The chromatic index $\chi'(G)$ of a graph $G$ is the smallest $k$ for which $G$ admits an edge $k$-coloring such that any two adjacent edges have distinct colors.
Yiqiao Wang   +3 more
doaj   +3 more sources

The strong chromatic index of sparse graphs [PDF]

open access: yesInformation Processing Letters, 2015
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Michał Debski   +2 more
exaly   +4 more sources

The Strong Chromatic Index of Random Graphs [PDF]

open access: yesSIAM Journal on Discrete Mathematics, 2005
The strong chromatic index of a graph $G$, denoted by $\chi_s(G)$, is the minimum number of colors needed to color its edges so that each color class is an induced matching. In this paper we analyze the asymptotic behavior of this parameter in a random graph $G(n,p)$, for two regions of the edge probability $p=p(n)$.
Alan Frieze, Benny Sudakov
exaly   +2 more sources

The strong chromatic index of a class of graphs

open access: yesDiscrete Mathematics, 2008
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Wensong Lin
exaly   +2 more sources

Strong list-chromatic index of subcubic graphs [PDF]

open access: yesDiscrete Mathematics, 2018
A strong $k$-edge-coloring of a graph G is an edge-coloring with $k$ colors in which every color class is an induced matching. The strong chromatic index of $G$, denoted by $χ'_{s}(G)$, is the minimum $k$ for which $G$ has a strong $k$-edge-coloring.
Gexin Yu, Donglei Yang
exaly   +4 more sources

Upper Bounds for the Strong Chromatic Index of Halin Graphs

open access: yesDiscussiones Mathematicae Graph Theory, 2018
The strong chromatic index of a graph G, denoted by χ′s(G), is the minimum number of vertex induced matchings needed to partition the edge set of G. Let T be a tree without vertices of degree 2 and have at least one vertex of degree greater than 2.
Hu Ziyu, Lih Ko-Wei, Liu Daphne Der-Fen
doaj   +3 more sources

Strong Chromatic Index Of Planar Graphs With Large Girth

open access: yesDiscussiones Mathematicae Graph Theory, 2014
Let Δ ≥ 4 be an integer. In this note, we prove that every planar graph with maximum degree Δ and girth at least 1 Δ+46 is strong (2Δ−1)-edgecolorable, that is best possible (in terms of number of colors) as soon as G contains two adjacent vertices of ...
Jennhwa Chang Gerard   +3 more
doaj   +4 more sources

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