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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

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 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

Rainbow connection number of Cm o Pn and Cm o Cn

open access: yesIndonesian Journal of Combinatorics, 2020
Let G = (V(G),E(G)) be a nontrivial connected graph. A rainbow path is a path which is each edge colored with different color. A rainbow coloring is a coloring which any two vertices should be joined by at least one rainbow path.
Alfi Maulani   +3 more
doaj   +1 more source

The Strong 3-Rainbow Index of Graphs Containing Three Cycles

open access: yesInPrime, 2023
The concept of a strong k-rainbow index is a generalization of a strong rainbow connection number, which has an interesting application in security systems in a communication network.
Zata Yumni Awanis
doaj   +1 more source

r-Strong edge colorings of graphs

open access: yesDiscrete Mathematics, 2006
If \(G\) is a graph and \(n\) a natural number, \(\chi(G,n)\) denotes the minimum number of colours required for a proper edge colouring of \(G\) in which no two vertices with distance at most \(n\) are incident to edges coloured with the same set of colours.
Akbari, S., Bidkhori, H., Nosrati, N.
openaire   +2 more sources

Strong edge-coloring of planar graphs

open access: yesDiscrete Mathematics, 2014
A strong edge coloring of a graph is a proper edge coloring where the edges at distance at most two receive distinct colors. It is known that every planar graph with maximum degree D has a strong edge coloring with at most 4D + 4 colors. We show that 3D + 6 colors suffice if the graph has girth 6, and 3D colors suffice if the girth is at least 7 ...
Hudák, Dávid   +3 more
openaire   +3 more sources

Strong edge-coloring of 2-degenerate graphs

open access: yesDiscrete Applied Mathematics, 2023
A strong edge-coloring of a graph $G$ is an edge-coloring in which every color class is an induced matching, and the strong chromatic index $χ_s'(G)$ is the minimum number of colors needed in strong edge-colorings of $G$. A graph is $2$-degenerate if every subgraph has minimum degree at most $2$. Choi, Kim, Kostochka, and Raspaud (2016) showed $χ_s'(G)
Gexin Yu, Rachel Yu
openaire   +2 more sources

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