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On the Strong Chromatic Index of Sparse Graphs

open access: diamondThe Electronic Journal of Combinatorics, 2018
The strong chromatic index of a graph $G$, denoted $\chi'_s(G)$, is the least number of colors needed to edge-color $G$ so that edges at distance at most two receive distinct colors. The strong list chromatic index, denoted $\chi'_{s,\ell}(G)$, is the least integer $k$ such that if arbitrary lists of size $k$ are assigned to each edge then $G$ can be ...
Philip DeOrsey   +9 more
openalex   +5 more sources

Strong chromatic index of subcubic planar multigraphs [PDF]

open access: greenEuropean Journal of Combinatorics, 2015
arXiv admin note: text overlap with arXiv:1506 ...
Alexandr Kostochka   +5 more
openalex   +4 more sources

The strong chromatic index of sparse graphs [PDF]

open access: greenInformation Processing Letters, 2014
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Michał Dębski   +2 more
openalex   +5 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   +2 more
exaly   +2 more sources

On the precise value of the strong chromatic index of a planar graph with a large girth [PDF]

open access: greenDiscrete Applied Mathematics, 2018
A strong $k$-edge-coloring of a graph $G$ is a mapping from $E(G)$ to $\{1,2,\ldots,k\}$ such that every pair of distinct edges at distance at most two receive different colors. The strong chromatic index $χ'_s(G)$ of a graph $G$ is the minimum $k$ for which $G$ has a strong $k$-edge-coloring.
Gerard J. Chang, Guan-Huei Duh
openalex   +5 more sources

The Strong Chromatic Index of Complete Halin Graphs

open access: goldMathematics
The strong edge coloring of a graph G is an assignment of colors to the edges of G such that two distinct edges are colored differently if they are incident to a common edge or share an endpoint. The strong chromatic index of a graph G, denoted by χs′(G),
Zhiwei Bi, Yunfang Tang
doaj   +2 more sources

The strong chromatic index of $K_{t,t}$-free graphs [PDF]

open access: greenCoRR
A strong edge coloring of a graph $G$ is an edge coloring $ϕ\,:\,E(G) \rightarrow \mathbb N$ such that each color class forms an induced matching in $G$. The strong chromatic index of $G$, written $χ'_s(G)$, is the minimum number of colors needed for a strong edge coloring of $G$. Erdős and Nešetřil conjectured in 1985 that if $G$ has maximum degree $d$
Richard Bi   +3 more
  +5 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

A Bound on the Strong Chromatic Index of a Graph

open access: greenJournal of Combinatorial Theory, Series B, 1997
The strong chromatic index \(s\chi'(G)\) of a graph \(G\) is the minimum number of colors in a proper edge coloring of a graph in which no edge is adjacent to an edge of the same color. It is proved that \(s\chi'(G)\leq 1.998\Delta^2\), where \(\Delta\) is the maximum degree of a vertex of \(G\). This answers a question of Erdös and Nešetřil, which was
Michael Molloy, Bruce Reed
openalex   +4 more sources

Strong chromatic index of subset graphs [PDF]

open access: bronzeJournal of Graph Theory, 1997
A coloring of the edges of a graph is called a strong edge coloring if the edges in each color form an induced matching. The strong chromatic index \(sq(G)\) of a graph \(G\) is the smallest number of colors in any strong coloring. A conjecture of Brualdi and Quinn states that if \(G\) is a bipartite graphs, with parts \(X\) and \(Y\), then \(sq(G)\leq\
Jennifer J. Quinn, Arthur T. Benjamin
openalex   +3 more sources

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