Results 11 to 20 of about 92,019 (279)

Edge coloring signed graphs [PDF]

open access: yesDiscrete Mathematics, 2020
We define a method for edge coloring signed graphs and what it means for such a coloring to be proper. Our method has many desirable properties: it specializes to the usual notion of edge coloring when the signed graph is all-negative, it has a natural definition in terms of vertex coloring of a line graph, and the minimum number of colors required for
openaire   +4 more sources

Vertex-Coloring Edge-Weighting of Bipartite Graphs with Two Edge Weights [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2016
Let $G$ be a graph and $\mathcal{S}$ be a subset of $Z$. A vertex-coloring $\mathcal{S}$-edge-weighting of $G$ is an assignment of weights by the elements of $\mathcal{S}$ to each edge of $G$ so that adjacent vertices have different sums of incident ...
Hongliang Lu
doaj   +1 more source

Planar graphs with $\Delta \geq 7$ and no triangle adjacent to a $C_4$ are minimally edge and total choosable [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2016
For planar graphs, we consider the problems of list edge coloring and list total coloring. Edge coloring is the problem of coloring the edges while ensuring that two edges that are adjacent receive different colors.
Marthe Bonamy   +2 more
doaj   +1 more source

Balanced edge colorings

open access: yesJournal of Combinatorial Theory, Series B, 2004
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Balister, P.N.   +3 more
openaire   +2 more sources

AVD proper edge-coloring of some families of graphs

open access: yesInternational Journal of Mathematics for Industry, 2021
Adjacent vertex-distinguishing proper edge-coloring is the minimum number of colors required for the proper edge-coloring of [Formula: see text] in which no two adjacent vertices are incident to edges colored with the same set of colors.
J. Naveen
doaj   +1 more source

Edge-b-Coloring Trees

open access: yesAlgorithmica, 2016
A b-coloring of the vertices of a graph is a proper coloring where each color class contains a vertex which is adjacent to at least one vertex in each other color class. The b-chromatic number of $G$ is the maximum integer $b(G)$ for which $G$ has a b-coloring with $b(G)$ colors.
Victor Campos, FERREIRA DA SILVA A
openaire   +2 more sources

Edge-Coloring Bipartite Graphs [PDF]

open access: yesJournal of Algorithms, 2000
This note provides an algorithm for finding \(\Delta\)(colors)-edge-coloring of a bipartite graph of order \(n\) and size \(m\) in time \(T+O(m\log \Delta)\) where \(T\) is the time needed to find a perfect matching in a \(k\)-regular bipartite graph, \(k\leq \Delta\), and \(\Delta\) is the maximum degree of vertices.
A. Kapoor, Rizzi, Romeo
openaire   +3 more sources

Graphs with coloring redundant edges

open access: yesElectronic Journal of Graph Theory and Applications, 2016
A graph edge is $d$-coloring redundant if the removal of the edge doesnot change the set of $d$-colorings of the graph. Graphs that are toosparse or too dense do not have coloring redundant edges.
Bart Demoen, Phuong-Lan Nguyen
doaj   +1 more source

Normal edge-colorings of cubic graphs [PDF]

open access: yes, 2019
A normal $k$-edge-coloring of a cubic graph is an edge-coloring with $k$ colors having the additional property that when looking at the set of colors assigned to any edge $e$ and the four edges adjacent it, we have either exactly five distinct colors or ...
Jaeger F.   +5 more
core   +2 more sources

Properly Edge-colored Theta Graphs in Edge-colored Complete Graphs [PDF]

open access: yesGraphs and Combinatorics, 2018
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Li, Ruonan   +2 more
openaire   +2 more sources

Home - About - Disclaimer - Privacy