Results 11 to 20 of about 60,707 (240)

On the computational complexity of strong edge coloring

open access: yesDiscrete Applied Mathematics, 2002
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
exaly   +2 more sources

Odd graph and its applications to the strong edge coloring [PDF]

open access: yesApplied Mathematics and Computation, 2018
A strong edge coloring of a graph is a proper edge coloring in which every color class is an induced matching. The strong chromatic index $χ_s'(G)$ of a graph $G$ is the minimum number of colors in a strong edge coloring of $G$. Let $Δ\geq 4$ be an integer. In this note, we study the odd graphs and show the existence of some special walks.
Tao Wang
exaly   +4 more sources

Strong edge-coloring for cubic Halin graphs

open access: yesDiscrete Mathematics, 2012
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Gérard J Chang, Daphne Der-Fen Liu
exaly   +4 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

Exact square coloring of graphs resulting from some graph operations and products

open access: yesAKCE International Journal of Graphs and Combinatorics, 2022
A vertex coloring of a graph [Formula: see text] is called an exact square coloring of G if any pair of vertices at distance 2 receive distinct colors.
Priyamvada, B. S. Panda
doaj   +1 more source

Local strong rainbow connection number of corona product between cycle graphs

open access: yesIndonesian Journal of Combinatorics, 2023
A rainbow geodesic is a shortest path between two vertices where all edges are colored differently. An edge coloring in which any pair of vertices with distance up to d, where d is a positive integer that can be connected by a rainbow geodesic is called ...
Khairunnisa N. Afifah, Kiki A. Sugeng
doaj   +1 more source

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