Results 51 to 60 of about 12,413 (296)

On Mf-Edge Colorings of Graphs

open access: yesDiscussiones Mathematicae Graph Theory, 2022
An edge coloring φ of a graph G is called an Mf-edge coloring if | φ(v)| ≤ f(v) for every vertex v of G, where φ(v) is the set of colors of edges incident with v and f is a function which assigns a positive integer f(v) to each vertex v.
Ivančo Jaroslav, Onderko Alfréd
doaj   +1 more source

On star and biclique edge‐colorings [PDF]

open access: yesInternational Transactions in Operational Research, 2016
AbstractA biclique of G is a maximal set of vertices that induces a complete bipartite subgraph of G with at least one edge, and a star of a graph G is a maximal set of vertices that induces a complete bipartite graph . A biclique (resp. star) edge‐coloring is a coloring of the edges of a graph with no monochromatic bicliques (resp. stars).
Simone Dantas   +5 more
openaire   +4 more sources

Decompositions of Plane Graphs Under Parity Constrains Given by Faces

open access: yesDiscussiones Mathematicae Graph Theory, 2013
An edge coloring of a plane graph G is facially proper if no two faceadjacent edges of G receive the same color. A facial (facially proper) parity edge coloring of a plane graph G is an (facially proper) edge coloring with the property that, for each ...
Czap Július, Tuza Zsolt
doaj   +1 more source

Improved Edge-Coloring with Three Colors

open access: yesTheoretical Computer Science, 2006
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

On b-vertex and b-edge critical graphs [PDF]

open access: yesOpuscula Mathematica, 2015
A \(b\)-coloring is a coloring of the vertices of a graph such that each color class contains a vertex that has a neighbor in all other color classes, and the \(b\)-chromatic number \(b(G)\) of a graph \(G\) is the largest integer \(k\) such that \(G ...
Noureddine Ikhlef Eschouf   +1 more
doaj   +1 more source

Edge Cover Through Edge Coloring

open access: yesThe Electronic Journal of Combinatorics
Let $G$ be a multigraph. A subset $F$ of $E(G)$ is an edge cover of $G$ if every vertex of $G$ is incident to an edge of $F$. The cover index, $\xi(G)$, is the largest number of edge covers into which the edges of $G$ can be partitioned. Clearly $\xi(G) \le \delta(G)$, the minimum degree of $G$.
Guantao Chen, Songling Shan
openaire   +1 more source

Locally irregular edge-coloring of subcubic graphs

open access: yes, 2022
A graph is {\em locally irregular} if no two adjacent vertices have the same degree. A {\em locally irregular edge-coloring} of a graph $G$ is such an (improper) edge-coloring that the edges of any fixed color induce a locally irregular graph.
Maceková, Mária   +5 more
core   +1 more source

Transferrin receptor 1‐mediated iron uptake supports thermogenic activation in human cervical‐derived adipocytes

open access: yesFEBS Letters, EarlyView.
In this study, we found that human cervical‐derived adipocytes maintain intracellular iron level by regulating the expression of iron transport‐related proteins during adrenergic stimulation. Melanotransferrin is predicted to interact with transferrin receptor 1 based on in silico analysis.
Rahaf Alrifai   +9 more
wiley   +1 more source

An Improved Algorithm for the Nearly Equitable Edge-Coloring Problem [PDF]

open access: yes, 2004
A nearly equitable edge-coloring of a multigraph is a coloring such that edges incident to each vertex are colored equitably in number. This problem was solved in O(kn^2) time, where n and k are the numbers of the edges and the colors, respectively.
XIE, Xuzhen   +3 more
core  

Tight Lower Bounds for List Edge Coloring [PDF]

open access: yes, 2018
The fastest algorithms for edge coloring run in time 2^m n^{O(1)}, where m and n are the number of edges and vertices of the input graph, respectively. For dense graphs, this bound becomes 2^{Theta(n^2)}.
Kowalik, Lukasz, Socala, Arkadiusz
core   +1 more source

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