Results 1 to 10 of about 2,240 (155)

Betweenness centrality in Cartesian product of graphs [PDF]

open access: yesAKCE International Journal of Graphs and Combinatorics, 2020
Betweenness centrality is a widely used measure in various graphs and it has a pivotal role in the analysis of complex networks. It measures the potential or power of a node to control the communication over the network.
Sunil Kumar R., Kannan Balakrishnan
doaj   +4 more sources

On linkedness in the Cartesian product of graphs [PDF]

open access: yesPeriodica Mathematica Hungarica, 2016
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Gabor Mészáros
exaly   +4 more sources

Connectivity of Cartesian product graphs

open access: yesDiscrete Mathematics, 2006
Let \(n(G)\), \(\kappa(G)\), \(\lambda(G)\) and \(\delta(G)\) be the order, connectivity, edge-connectivity and minimum degree of a (di-)graph, respectively. In addition, let \(G_1\times G_2\) be the Cartesian product of two (di-)graphs \(G_1\) and \(G_2\). If \(G_1,G_2\) are two connected graphs, then the authors prove that \(\kappa(G_1\times G_2)\geq\
Jun-Ming Xu, Chao Yang
exaly   +3 more sources

On Path-Pairability in the Cartesian Product of Graphs

open access: yesDiscussiones Mathematicae Graph Theory, 2016
We study the inheritance of path-pairability in the Cartesian product of graphs and prove additive and multiplicative inheritance patterns of path-pairability, depending on the number of vertices in the Cartesian product.
Mészáros Gábor
doaj   +4 more sources

On primality of Cartesian product of graphs [PDF]

open access: yesArab Journal of Mathematical Sciences
PurposeThe present work focuses on the primality and the Cartesian product of graphs.Design/methodology/approachGiven a graph G, a subset M of V (G) is a module of G if, for a, b ∈ M and x ∈ V (G) \ M, xa ∈ E(G) if and only if xb ∈ E(G).
Nadia El Amri   +2 more
doaj   +3 more sources

On subgraphs of Cartesian product graphs

open access: yesDiscrete Mathematics, 2002
All graphs considered are finite undirected and simple ones. Such graphs which can be represented as nontrivial subgraphs of Cartesian product graphs are characterized. In general a graph \(G\) is prime with respect to a graph product \(*\) if it cannot be represented as a product of two nontrivial graphs, and \(G\) is called \(S\)-prime with respect ...
Sandi Klavžar   +2 more
exaly   +2 more sources

The Thickness of Amalgamations and Cartesian Product of Graphs

open access: yesDiscussiones Mathematicae Graph Theory, 2017
The thickness of a graph is the minimum number of planar spanning subgraphs into which the graph can be decomposed. It is a measurement of the closeness to the planarity of a graph, and it also has important applications to VLSI design, but it has been ...
Yang Yan, Chen Yichao
doaj   +2 more sources

On Total Domination in the Cartesian Product of Graphs

open access: yesDiscussiones Mathematicae Graph Theory, 2018
Ho proved in [A note on the total domination number, Util. Math. 77 (2008) 97–100] that the total domination number of the Cartesian product of any two graphs without isolated vertices is at least one half of the product of their total domination numbers.
Brešar Boštjan   +3 more
doaj   +4 more sources

Motion planning in cartesian product graphs

open access: yesDiscussiones Mathematicae Graph Theory, 2014
Let G be an undirected graph with n vertices. Assume that a robot is placed on a vertex and n − 2 obstacles are placed on the other vertices. A vertex on which neither a robot nor an obstacle is placed is said to have a hole.
Deb Biswajit, Kapoor Kalpesh
doaj   +2 more sources

The Cartesian Product and Join Graphs on Edge-Version Atom-Bond Connectivity and Geometric Arithmetic Indices

open access: yesMolecules, 2018
The Cartesian product and join are two classical operations in graphs. Let dL(G)(e) be the degree of a vertex e in line graph L(G) of a graph G. The edge versions of atom-bond connectivity (ABCe) and geometric arithmetic (GAe) indices of G are defined as
Xiujun Zhang   +3 more
doaj   +3 more sources

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