Fadhal, Emad Alden Sir Alkhatim Abraham2026-05-222026-05-222010https://hdl.handle.net/10566/22812In the course of exploring various symmetries of vertex-transitive graphs, we introduce the concept of quasi-normal subgroups in groups. This is done since the symmetries of vertex-transitive graphs are intimately linked to those, fait accompli, of groups. With this, we ask if the concept of strongly simple groups has a place for consideration.envertex-transitive graphsSymmetriesQuasi-normal subgroupsFait accompliThesis