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Strong Edge Coloring of Generalized Petersen Graphs [PDF]

open access: yesMathematics, 2020
A strong edge coloring of a graph G is a proper edge coloring such that every color class is an induced matching. In 2018, Yang and Wu proposed a conjecture that every generalized Petersen graph P(n,k) with k≥4 and n>2k can be strong edge colored with ...
Ming Chen, Lianying Miao, Shan Zhou
doaj   +2 more sources

Strong Edge-Coloring Of Planar Graphs

open access: yesDiscussiones Mathematicae Graph Theory, 2017
A strong edge-coloring of a graph is a proper edge-coloring where each color class induces a matching. We denote by 𝜒's(G) the strong chromatic index of G which is the smallest integer k such that G can be strongly edge-colored with k colors. It is known
Song Wen-Yao, Miao Lian-Ying
doaj   +3 more sources

The strong 3-rainbow index of some certain graphs and its amalgamation [PDF]

open access: yesOpuscula Mathematica, 2022
We introduce a strong \(k\)-rainbow index of graphs as modification of well-known \(k\)-rainbow index of graphs. A tree in an edge-colored connected graph \(G\), where adjacent edge may be colored the same, is a rainbow tree if all of its edges have ...
Zata Yumni Awanis, A.N.M. Salman
doaj   +1 more source

Strong Edge Coloring of K4(t)-Minor Free Graphs

open access: yesAxioms, 2023
A strong edge coloring of a graph G is a proper coloring of edges in G such that any two edges of distance at most 2 are colored with distinct colors. The strong chromatic index χs′(G) is the smallest integer l such that G admits a strong edge coloring ...
Huixin Yin, Miaomiao Han, Murong Xu
doaj   +1 more source

Grünbaum colorings extended to non-facial 3-cycles

open access: yesElectronic Journal of Graph Theory and Applications, 2022
We consider the question of when a triangulation with a Grünbaum coloring can be edge-colored with three colors such that the non-facial 3-cycles also receive all three colors; we will call this a strong Grünbaum coloring.
sarah-marie belcastro, Ruth Haas
doaj   +1 more source

From Edge-Coloring to Strong Edge-Coloring [PDF]

open access: yesThe Electronic Journal of Combinatorics, 2015
In this paper we study a generalization of both proper edge-coloring and strong edge-coloring: $k$-intersection edge-coloring, introduced by Muthu, Narayanan and Subramanian. In this coloring, the set $S(v)$ of colors used by edges incident to a vertex $v$ does not intersect $S(u)$ on more than $k$ colors when $u$ and $v$ are adjacent.
Borozan, Valentin   +6 more
openaire   +3 more sources

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   +1 more source

Strong Edge-Coloring of Hamming Graphs

open access: yesProceedings of Computer Science and Information Technologies 2023 Conference, 2023
An edge coloring of a graph G is a mapping Á : EG ! N. The edge coloring Á is called strong if Áe 6= Áe0 for any two edges e and e0 that are distance at most one apart. The minimum number of colors needed for a strong edge coloring of a graph G is called strong chromatic index of G and denoted by Â0 sG.
Drambyan, A., Petrosyan, P.
openaire   +2 more sources

Strong edge coloring sparse graphs [PDF]

open access: yesElectronic Notes in Discrete Mathematics, 2015
A strong edge coloring of a graph is a proper edge coloring such that no edge has two incident edges of the same color. Erdős and Nesetřil conjectured in 1989 that $5 /4∆2$ colors are always enough for a strong edge coloring, where $∆$ is the maximum degree of the graph.
Julien Bensmail   +2 more
openaire   +1 more source

Between proper and strong edge‐colorings of subcubic graphs [PDF]

open access: yesJournal of Graph Theory, 2020
AbstractIn a proper edge‐coloring the edges of every color form a matching. A matching is induced if the end‐vertices of its edges induce a matching. A strong edge‐coloring is an edge‐coloring in which the edges of every color form an induced matching.
Herve Hocquard   +2 more
openaire   +2 more sources

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