Connectivity of The Triple Idempotent Graph of Ring Zn

Vika Yugi Kurniawan, Bayu Purboutomo, Sutrima Sutrima, Nughthoh Arfawi Kurdhi

Abstract


Let R be a commutative ring and I(R) denotes a set of all idempotent elements of R. The triple idempotent graph of ring R, denoted by T I(R), is the undirected simple graph with vertex-set in R−{0,1}. Two distinct vertices u and v in T I(Zn) are adjacent if and only if there exists w ∈ R− {0,1} where w ̸= u and w ̸= v such as uv ∈/ I(R), uw ∈/ I(R), vw ∈/ I(R) and uvw ∈ I(R). In this research, we study the connectivity of the triple idempotent graph of ring integer modulo n, denoted by T I(Zn). The result is that the triple idempotent graph of ring Zn is a connected graph if n prime and n ≥ 7.

Keywords


the triple idempotent graph; ring of integers modulo n; connected graph

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DOI: http://dx.doi.org/10.12962/j24775401.v10i1.20266

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International Journal of Computing Science and Applied Mathematics by Pusat Publikasi Ilmiah LPPM, Institut Teknologi Sepuluh Nopember is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
Based on a work at https://iptek.its.ac.id/index.php/ijcsam.