Irreversible k-Threshold Conversion Number of Circulant Graphs

An irreversible conversion process is a dynamic process on a graph where a one-way change of state (from state 0 to state 1) is applied on the vertices if they satisfy a conversion rule that is determined at the beginning of the study. The irreversible k-threshold conversion process on a graph G=V,E...

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Main Authors: Ramy Shaheen, Suhail Mahfud, Ali Kassem
Format: Article
Language:English
Published: Hindawi Limited 2022-01-01
Series:Journal of Applied Mathematics
Online Access:http://dx.doi.org/10.1155/2022/1250951
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author Ramy Shaheen
Suhail Mahfud
Ali Kassem
author_facet Ramy Shaheen
Suhail Mahfud
Ali Kassem
author_sort Ramy Shaheen
collection DOAJ
description An irreversible conversion process is a dynamic process on a graph where a one-way change of state (from state 0 to state 1) is applied on the vertices if they satisfy a conversion rule that is determined at the beginning of the study. The irreversible k-threshold conversion process on a graph G=V,E is an iterative process which begins by choosing a set S0⊆V, and for each step tt=1,2,⋯,,St is obtained from St−1 by adjoining all vertices that have at least k neighbors in St−1. S0 is called the seed set of the k-threshold conversion process, and if St=VG for some t≥0, then S0 is an irreversible k-threshold conversion set (IkCS) of G. The k-threshold conversion number of G (denoted by (CkG) is the minimum cardinality of all the IkCSs of G. In this paper, we determine C2G for the circulant graph Cn1,r when r is arbitrary; we also find C3Cn1,r when r=2,3. We also introduce an upper bound for C3Cn1,4. Finally, we suggest an upper bound for C3Cn1,r if n≥2r+1 and n≡0mod 2r+1.
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spelling doaj.art-d01e0584b6c24bdda28e00fd285d13852022-12-22T04:04:38ZengHindawi LimitedJournal of Applied Mathematics1687-00422022-01-01202210.1155/2022/1250951Irreversible k-Threshold Conversion Number of Circulant GraphsRamy Shaheen0Suhail Mahfud1Ali Kassem2Department of MathematicsDepartment of MathematicsDepartment of MathematicsAn irreversible conversion process is a dynamic process on a graph where a one-way change of state (from state 0 to state 1) is applied on the vertices if they satisfy a conversion rule that is determined at the beginning of the study. The irreversible k-threshold conversion process on a graph G=V,E is an iterative process which begins by choosing a set S0⊆V, and for each step tt=1,2,⋯,,St is obtained from St−1 by adjoining all vertices that have at least k neighbors in St−1. S0 is called the seed set of the k-threshold conversion process, and if St=VG for some t≥0, then S0 is an irreversible k-threshold conversion set (IkCS) of G. The k-threshold conversion number of G (denoted by (CkG) is the minimum cardinality of all the IkCSs of G. In this paper, we determine C2G for the circulant graph Cn1,r when r is arbitrary; we also find C3Cn1,r when r=2,3. We also introduce an upper bound for C3Cn1,4. Finally, we suggest an upper bound for C3Cn1,r if n≥2r+1 and n≡0mod 2r+1.http://dx.doi.org/10.1155/2022/1250951
spellingShingle Ramy Shaheen
Suhail Mahfud
Ali Kassem
Irreversible k-Threshold Conversion Number of Circulant Graphs
Journal of Applied Mathematics
title Irreversible k-Threshold Conversion Number of Circulant Graphs
title_full Irreversible k-Threshold Conversion Number of Circulant Graphs
title_fullStr Irreversible k-Threshold Conversion Number of Circulant Graphs
title_full_unstemmed Irreversible k-Threshold Conversion Number of Circulant Graphs
title_short Irreversible k-Threshold Conversion Number of Circulant Graphs
title_sort irreversible k threshold conversion number of circulant graphs
url http://dx.doi.org/10.1155/2022/1250951
work_keys_str_mv AT ramyshaheen irreversiblekthresholdconversionnumberofcirculantgraphs
AT suhailmahfud irreversiblekthresholdconversionnumberofcirculantgraphs
AT alikassem irreversiblekthresholdconversionnumberofcirculantgraphs