Geodesic
Roughness in $G$-graphs
Commentationes Mathematicae Universitatis Carolinae, Tome 61 (2020) no. 2, pp. 147-154.

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$G$-graphs are a type of graphs associated to groups, which were proposed by A. Bretto and A. Faisant (2005). In this paper, we first give some theorems regarding $G$-graphs. Then we introduce the notion of rough $G$-graphs and investigate some important properties of these graphs.
DOI : 10.14712/1213-7243.2020.016
Classification : 03E75, 03E99, 05C25
Keywords: coset; $G$-graph; rough set; group; normal subgroup; lower approximation; upper approximation 
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Onagh, Bibi N. Roughness in $G$-graphs. Commentationes Mathematicae Universitatis Carolinae, Tome 61 (2020) no. 2, pp. 147-154. doi : 10.14712/1213-7243.2020.016. http://geodesic.mathdoc.fr/articles/10.14712/1213-7243.2020.016/

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