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arXiv · 1404.5192

On the power graph of a finite group

Min Feng·Xuanlong Ma·Kaishun Wang
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Abstract

The power graph $\mathcal P_G$ of a finite group $G$ is the graph with the vertex set $G$, where two elements are adjacent if one is a power of the other. We first show that $\mathcal P_G$ has an transitive orientation, so it is a perfect graph and its core is a complete graph. Then we use the poset on all cyclic subgroups (under usual inclusion) to characterise the structure of $\mathcal P_G$. Finally, the closed formula for the metric dimension of $\mathcal P_G$ is established. As an application, we compute the metric dimension of the power graph of a cyclic group.

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Min Feng, Xuanlong Ma, Kaishun Wang. 2014-04-21. On the power graph of a finite group. https://arxiv.org/abs/1404.5192

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