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All Journal Indonesian Journal of Combinatorics
Sanaa M. S. Omer
Department of Mathematics, faculty of Science, University of Benghazi, Al Kufra, Libya
Computer Science & IT Decision Sciences, Operations Research & Management

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Structure of intersection graphs Haval M. Mohammed Salih; Sanaa M. S. Omer
Indonesian Journal of Combinatorics Vol 5, No 2 (2021)
Publisher : Indonesian Combinatorial Society (InaCombS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/ijc.2021.5.2.6

Abstract

 Let G be a finite group and let N be a fixed normal subgroup of G.  In this paper, a new kind of graph on G, namely the intersection graph is defined and studied. We use  to denote this graph, with its vertices are all normal subgroups of G and two distinct vertices are adjacent if their intersection in N. We show some properties of this graph. For instance, the intersection graph is a simple connected with diameter at most two. Furthermore we give the graph structure of  for some finite groups such as the symmetric, dihedral, special linear group, quaternion and cyclic groups. 
Co-Authors Haval M. Mohammed Salih