Results 21 to 30 of about 3,558 (256)

On star coloring of degree splitting of cartesian product graphs [PDF]

open access: yes, 2022
A star coloring of a graph G is a proper vertex coloring with the condition that no path on four vertices in G can be labelled by two colors. The star chromatic number chi(s) (G) of G is the least number of colors that is required to star color G.
Ulagammal, S., Vivin, Vernold J.
core   +1 more source

On the power domination number of the Cartesian product of graphs

open access: yesAKCE International Journal of Graphs and Combinatorics, 2019
We give a brief survey about the existing results on the power domination of the Cartesian product of graphs, and improve two of the results by determining the exact power domination numbers of two families of graphs, namely, the cylinder Pn□Cmand the ...
K.M. Koh, K.W. Soh
doaj   +2 more sources

Operations on Neutrosophic Vague Graphs [PDF]

open access: yesNeutrosophic Sets and Systems, 2020
Neutrosophic graph is a mathematical tool to hold with imprecise and unspecified data. In this manuscript, the operations on neutrosophic vague graphs are introduced. Moreover, Cartesian product, lexicographic product, cross product, strong product and
S. Satham Hussain   +3 more
doaj   +1 more source

An improvement in the two-packing bound related to Vizing's conjecture

open access: yesTheory and Applications of Graphs, 2020
Vizing's conjecture states that the domination number of the Cartesian product of graphs is at least the product of the domination numbers of the two factor graphs.
Kimber Wolff
doaj   +1 more source

k-Forcing number for Cartesian product of some graphs [PDF]

open access: yes, 2021
$k$-Forcing is an iterative graph coloring process based on a color change rule that describes how to color the vertices. $k$-Forcing is a generalization of zero forcing that is useful in multiple scientific branches, such as quantum control.
Soltankhah, Nasrin, Montazeri, Zeinab
core   +1 more source

On the first and second Zagreb indices of some products of signed graphs

open access: yesAKCE International Journal of Graphs and Combinatorics, 2023
Some of the most comprehensively studied degree-based topological indices are the Zagreb indices. In this article, the pair of Zagreb indices have been determined for five product graphs namely tensor product, Cartesian product, lexicographic product ...
Shivani Rai, Biswajit Deb
doaj   +1 more source

Cartesian product of hypergraphs: properties and algorithms [PDF]

open access: yesElectronic Proceedings in Theoretical Computer Science, 2009
Cartesian products of graphs have been studied extensively since the 1960s. They make it possible to decrease the algorithmic complexity of problems by using the factorization of the product.
Alain Bretto   +2 more
doaj   +1 more source

Strong Edge Coloring of Cayley Graphs and Some Product Graphs [PDF]

open access: yes, 2022
A strong edge coloring of a graph G is a proper edge coloring of G such that every color class is an induced matching. The minimum number of colors required is termed the strong chromatic index.
Tuza, Zsolt   +3 more
core   +1 more source

The generalized 3-connectivity of Cartesian product graphs [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2012
Graph ...
Hengzhe Li, Xueliang Li, Yuefang Sun
doaj   +1 more source

DP‐coloring Cartesian products of graphs

open access: yesJournal of Graph Theory, 2022
AbstractDP‐coloring (also called correspondence coloring) is a generalization of list coloring introduced by Dvořák and Postle in 2015. Motivated by results related to list coloring Cartesian products of graphs, we initiate the study of the DP‐chromatic number, , of the same. We show that , where is the coloring number of the graph .
Hemanshu Kaul   +3 more
openaire   +3 more sources

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