Results 21 to 30 of about 18,582 (315)

Applications of Graph Coloring [PDF]

open access: yes, 2005
A graph G is a mathematical structure consisting of two sets V(G) (vertices of G) and E(G) (edges of G). Proper coloring of a graph is an assignment of colors either to the vertices of the graphs, or to the edges, in such a way that adjacent vertices / edges are colored differently.
Ünal Ufuktepe, Goksen Bacak
openaire   +2 more sources

A Hybrid Floyd-Warshall and Graph Coloring Algorithm for Finding the Smallest Number of Colors Needed for a Distance Coloring of Graphs [PDF]

open access: yesControl and Optimization in Applied Mathematics
Graph coloring is a crucial area of research in graph theory, with numerous algorithms proposed for various types of graph coloring, particularly graph p-distance coloring.
Hanifa Mosawi   +2 more
doaj   +1 more source

Labeling, Covering and Decomposing of Graphs — Smarandache’s Notion in Graph Theory [PDF]

open access: yes, 2010
This paper surveys the applications of Smarandache’s notion to graph theory appeared in International J.Math.Combin. from Vol.1,2008 to Vol.3,2009.
Mao, Linfan, Linfan Mao
core   +1 more source

Signed Graph Equation [PDF]

open access: yes, 2009
For standard terminology and notion in graph theory we refer the reader to Harary [7]; the non-standard will be given in this paper as and when required.
Reddy, P. Siva Kota   +3 more
core   +1 more source

Triple Connected Domination Number of a Graph [PDF]

open access: yes, 2012
The concept of triple connected graphs with real life application was introduced by considering the existence of a path containing any three vertices of a graph G.
Selvam Avadayappan   +7 more
core   +1 more source

Solutions of Some L(2, 1)-Coloring Related Open Problems

open access: yesDiscussiones Mathematicae Graph Theory, 2016
An L(2, 1)-coloring (or labeling) of a graph G is a vertex coloring f : V (G) → Z+ ∪ {0} such that |f(u) − f(v)| ≥ 2 for all edges uv of G, and |f(u)−f(v)| ≥ 1 if d(u, v) = 2, where d(u, v) is the distance between vertices u and v in G.
Mandal Nibedita, Panigrahi Pratima
doaj   +1 more source

On Rainbow Antimagic Coloring of Joint Product of Graphs

open access: yesCauchy: Jurnal Matematika Murni dan Aplikasi, 2023
Let  be a connected graph with vertex set  and edge set . A bijection  from  to the set  is a labeling of graph . The bijection  is called rainbow antimagic vertex labeling if for any two edge  and  in path , where  and .
Brian Juned Septory   +3 more
doaj   +1 more source

The H-Line Signed Graph of a Signed Graph [PDF]

open access: yes, 2010
For standard terminology and notion in graph theory we refer the reader to Harary; the non-standard will be given in this paper as and when required.
Reddy, Siva Kota   +2 more
core   +1 more source

Orthogonal Colorings of Graphs [PDF]

open access: yesThe Electronic Journal of Combinatorics, 1998
An orthogonal coloring of a graph $G$ is a pair $\{c_1,c_2\}$ of proper colorings of $G$, having the property that if two vertices are colored with the same color in $c_1$, then they must have distinct colors in $c_2$. The notion of orthogonal colorings is strongly related to the notion of orthogonal Latin squares. The orthogonal chromatic number of $G$
Yair Caro, Raphael Yuster
openaire   +2 more sources

AN INCLUSIVE LOCAL IRREGULARITY VERTEX COLORING OF BOOK GRAPH FAMILY

open access: yesBarekeng, 2023
Let  is a simple and connected graph with    as vertex set and  as edge set. Vertex labeling on inclusive local irregularity vertex coloring is defined by mapping and the function of the inclusive local irregularity vertex coloring is with .
Robiatul Adawiyah   +2 more
doaj   +1 more source

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