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arXiv · 1505.03462

Classification of finite groups with toroidal or projective-planar permutability graphs

R. Rajkumar·P. Devi·Andrei Gagarin
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Abstract

Let $G$ be a group. The permutability graph of subgroups of $G$, denoted by $\Gamma(G)$, is a graph having all the proper subgroups of $G$ as its vertices, and two subgroups are adjacent in $\Gamma(G)$ if and only if they permute. In this paper, we classify the finite groups whose permutability graphs are toroidal or projective-planar. In addition, we classify the finite groups whose permutability graph does not contain one of $K_{3,3}$, $K_{1,5}$, $C_6$, $P_5$, or $P_6$ as a subgraph.

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R. Rajkumar, P. Devi, Andrei Gagarin. 2015-05-13. Classification of finite groups with toroidal or projective-planar permutability graphs. https://doi.org/10.1080/00927872.2015.1087004

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