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On some properties of enhanced power graph

Combinatorics 2016-06-24 v1 Group Theory

Abstract

Given a group GG, the enhanced power graph of GG denoted by Ge(G)\mathcal{G}_e(G), is the graph with vertex set GG and two distinct vertices x,yx, y are edge connected in Ge(G)\mathcal{G}_e(G) if there exists zGz\in G such that x=zmx=z^m and y=zn y=z^n , for some m,nNm, n\in \mathbb{N}. In this article, we characterize the enhanced power graph Ge(G)\mathcal{G}_e(G) of GG. The graph Ge(G)\mathcal{G}_e(G) is complete if and only if GG is cyclic, and Ge(G)\mathcal{G}_e(G) is Eulerian if and only if G|G| is odd. We classify all abelian groups and also all non-abelian pp-groups GG for which Ge(G)\mathcal{G}_e(G) satisfies the cone property.

Keywords

Cite

@article{arxiv.1606.03209,
  title  = {On some properties of enhanced power graph},
  author = {Sudip Bera and A. K. Bhuniya},
  journal= {arXiv preprint arXiv:1606.03209},
  year   = {2016}
}

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10 pages