TY - JOUR T1 - The Disc Structures of Commuting Involution Graphs for Certain Simple Groups AU - Nawawi, Athirah AU - Kasim, Suzila Mohd AU - Husain, Sharifah Kartini Said AU - Ibrahim, Siti Nur Iqmal JO - Journal of Engineering and Applied Sciences VL - 14 IS - 13 SP - 4583 EP - 4589 PY - 2019 DA - 2001/08/19 SN - 1816-949x DO - jeasci.2019.4583.4589 UR - https://makhillpublications.co/view-article.php?doi=jeasci.2019.4583.4589 KW - Commuting graph KW -Mathieu group KW -symplectic group KW -conjugacy class KW -involution KW -automorphism AB - Suppose G is a finite group and X is a subset of G. The commuting graph on the set X, C (G, X) whose vertex set X with any two vertices connected by an edge, if and only if they commute. In this study, we consider as the Mathieu groups, symplectic groups, together with their automorphism groups and are conjugacy classes of involutions. Let tεX, here, we investigate the orbits under the action of CG(t) from a fixed G vertex t and describe the group theoretic structure of (t, x) where x is a CG(t) orbit representative. ER -