Results 11 to 20 of about 33,621 (316)

Vertex-Coloring with Star-Defects [PDF]

open access: green, 2016
Defective coloring is a variant of traditional vertex-coloring, according to which adjacent vertices are allowed to have the same color, as long as the monochromatic components induced by the corresponding edges have a certain structure. Due to its important applications, as for example in the bipartisation of graphs, this type of coloring has been ...
Patrizio Angelini   +3 more
openalex   +5 more sources

On vertex coloring without monochromatic triangles [PDF]

open access: yes, 2017
We study a certain relaxation of the classic vertex coloring problem, namely, a coloring of vertices of undirected, simple graphs, such that there are no monochromatic triangles.
B Courcelle   +14 more
core   +2 more sources

On the Path-Avoidance Vertex-Coloring Game [PDF]

open access: diamondElectronic Notes in Discrete Mathematics, 2011
For any graph $F$ and any integer $r\geq 2$, the online vertex-Ramsey density of $F$ and $r$, denoted $m^*(F,r)$, is a parameter defined via a deterministic two-player Ramsey-type game (Painter vs. Builder). This parameter was introduced in a recent paper [arXiv:1103.5849], where it was shown that the online vertex-Ramsey density determines the ...
Torsten Mütze, Reto Spöhel
  +8 more sources

Vertex-Coloring with Defects

open access: diamondJournal of Graph Algorithms and Applications, 2017
Defective coloring is a variant of the traditional vertex-coloring in which adjacent vertices are allowed to have the same color, as long as the induced monochromatic components have a certain structure. Due to its important applications, as for example in the bipartisation of graphs, this type of coloring has been extensively studied, mainly with ...
Patrizio Angelini   +9 more
openalex   +4 more sources

On the complexity of vertex-coloring edge-weightings [PDF]

open access: diamondDiscrete Mathematics & Theoretical Computer Science, 2011
Graphs and Algorithms Given a graph G = (V; E) and a weight function omega : E -\textgreater R, a coloring of vertices of G, induced by omega, is defined by chi(omega) (nu) = Sigma(e(sic)nu) omega (e) for all nu is an element of V. In this paper, we show that determining whether a particular graph has a weighting of the edges from \1, 2\ that
Andrzej Dudek, David Wajc
openalex   +4 more sources

on Graceful Chromatic Number of Vertex amalgamation of Tree Graph Family

open access: yesCauchy: Jurnal Matematika Murni dan Aplikasi, 2022
Proper vertex coloring c of a graph G is a graceful coloring if c is a graceful k-coloring for k∈{1,2,3,…}. Definition graceful k-coloring of a graph G=(V,E) is a proper vertex coloring c:V(G)→{1,2,…,k);k≥2, which induces a proper edge coloring c':E(G ...
Arika Indah Kristiana   +3 more
doaj   +1 more source

PEWARNAAN TITIK TOTAL SUPER ANTI-AJAIB LOKAL PADA GRAF PETERSEN DIPERUMUM P(n,k) DENGAN k=1,2

open access: yesBarekeng, 2021
The local antimagic total vertex labeling of graph G is a labeling that every vertices and edges label by natural number from 1 to  such that every two adjacent vertices has different weights, where is The sum of a vertex label and the labels of all ...
Deddy Setyawan   +4 more
doaj   +1 more source

Pewarnaan Titik Ketakteraturan Lokal Inklusif pada Hasil Operasi Comb Graf Bintang

open access: yesContemporary Mathematics and Applications (ConMathA), 2022
Let G(V,E) is a simple graph and connected where V(G) is vertex set and E(G) is edge set. An inclusive local irregularity vertex coloring is defined by a mapping l:V(G) í  {1,2,..., k} as vertex labeling and wi : V(G) í  N is function of inclusive local ...
Arika Indah Kristiana   +2 more
doaj   +1 more source

A survey on vertex coloring problems [PDF]

open access: bronzeInternational Transactions in Operational Research, 2009
AbstractThis paper surveys the most important algorithmic and computational results on the Vertex Coloring Problem (VCP) and its generalizations. The first part of the paper introduces the classical models for the VCP, and discusses how these models can be used and possibly strengthened to derive exact and heuristic algorithms for the problem ...
Enrico Malaguti, Paolo Toth
openalex   +4 more sources

LOCAL IRREGULARITY POINT COLORING ON THE RESULT OF SUBDIVISION OPERATION OF HELM GRAPHS

open access: yesJurnal Diferensial, 2023
One of the sub-chapters studied in graphs is local irregularity vertex coloring of graph. The based on definition of local irregularity vertex coloring of graph, as follow : (i)l : V (G) →{1, 2, 3, . . . , k} as a vertex irregular labeling and w : V (G) →
Ilmiatun Nuroeni   +4 more
doaj   +1 more source

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