Results 21 to 30 of about 978,459 (257)

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

Complexity and algorithms for injective edge-coloring in graphs

open access: yes, 2021
International audienceAn injective k-edge-coloring of a graph G is an assignment of colors, i.e. integers in {1,. .. , k}, to the edges of G such that any two edges each incident with one distinct endpoint of a third edge, receive distinct colors.
Hocquard, Hervé   +5 more
core   +1 more source

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

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

Nonrepetitive edge-colorings of trees [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2017
A repetition is a sequence of symbols in which the first half is the same as the second half. An edge-coloring of a graph is repetition-free or nonrepetitive if there is no path with a color pattern that is a repetition.
A. Kündgen, T. Talbot
doaj   +1 more source

Facial graceful coloring of plane graphs [PDF]

open access: yesOpuscula Mathematica
Let \(G\) be a plane graph. Two edges of \(G\) are facially adjacent if they are consecutive on the boundary walk of a face of \(G\). A facial edge coloring of \(G\) is an edge coloring such that any two facially adjacent edges receive different colors ...
Július Czap
doaj   +1 more source

Improved Bounds for Some Facially Constrained Colorings

open access: yesDiscussiones Mathematicae Graph Theory, 2023
A facial-parity edge-coloring of a 2-edge-connected plane graph is a facially-proper edge-coloring in which every face is incident with zero or an odd number of edges of each color. A facial-parity vertex-coloring of a 2-connected plane graph is a proper
Štorgel Kenny
doaj   +1 more source

A structural approach to the graceful coloring of a subclass of trees

open access: yesHeliyon, 2023
Let M={1,2,..m} and G be a simple graph. A graceful m-coloring of G is a proper vertex coloring of G using the colors in M which leads to a proper edge coloring using M∖{m} colors such that the associated color of each edge is the absolute difference ...
Laavanya D, Devi Yamini S
doaj   +1 more source

On Weighted Bipartite Edge Coloring [PDF]

open access: yes, 2015
We study weighted bipartite edge coloring problem, which is a generalization of two classical problems: bin packing and edge coloring. This problem has been inspired from the study of Clos networks in multirate switching environment in communication ...
Singh, Mohit, Khan, Arindam
core   +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

Home - About - Disclaimer - Privacy