Related graphs of the conjugacy classes of a 3-generator 5-group

Authors

  • Alia Husna Mohd Noor Universiti Teknologi Malaysia
  • Nor Haniza Sarmin Universiti Teknologi Malaysia
  • Hamisan Rahmat Universiti Teknologi Malaysia

DOI:

https://doi.org/10.11113/mjfas.v14n0.1269

Keywords:

Conjugacy class, generalized conjugacy class graph, orbit graph

Abstract

The study on conjugacy class has started since 1968. A conjugacy class is defined as an equivalence class under the equivalence relation of being conjugate. In this research, let be a 3-generator 5-group and the scope of the graphs is a simple undirected graph. This paper focuses on the determination of the conjugacy classes of where the set omega is the subset of all commuting elements in the group. The elements of the group with order 5 are identified from the group presentation. The pair of elements are formed in the form of  which is of size two where  and  commute. In addition, the results on conjugacy classes of are applied into graph theory. The determination of the set omega is important in the computation of conjugacy classes in order to find the generalized conjugacy class graph and orbit graph. The group action that is considered to compute the conjugacy classes is conjugation action. Based on the computation, the generalized conjugacy class graph and orbit graph turned out to be a complete graph.

Author Biographies

Alia Husna Mohd Noor, Universiti Teknologi Malaysia

Department of Mathematical Sciences, Faculty of Science

Nor Haniza Sarmin, Universiti Teknologi Malaysia

Department of Mathematical Sciences, Faculty of Science

Hamisan Rahmat, Universiti Teknologi Malaysia

Department of Mathematical Sciences, Faculty of Science

References

Al-Hasanat, B. N., Almatroud, O. A. and Ababneh, M. S. Dihedral groups of order . International Journal of Applied Mathematics. 26(1), 1 – 7, 2013.

Alimon, N. I., Sarmin, N. H., Ahmad Fadzil, A. F. The energy of four graphs of some metacyclic 2-groups. Malaysian Journal of Fundamental and Applied Sciences. 14(1), 59 – 66, 2018.

Burnside, W. Theory of Groups of Finite Order. 7th ed. Cambridge: University Press. 1897.

Erdos, P. and Turan, P. On some problems of a statistical group theory. IV. Acta. Math. Acad. Sci. Hung. 19(3-4), 413 – 435, 1968.

El-Sanfaz, M. A. and Sarmin, N. H. On the probability that an element of metacyclic 2-group of positive type fixes a set and its generalized conjugacy class graph. Global Journal of Pure and Applied Mathematics. 11(2), 899 – 908, 2015.

Fraleigh, J. B. A First Course in Abstract Algebra. 7th ed. USA: Addison Wesly Longman, Inc. 2000.

Ilangovan, S. Conjugacy classes and graphs of two-groups of nilpotency class 2. Ph.D Thesis. Universiti Teknologi Malaysia. 2013.

Ibrahim, A. A., Sarmin, N. H., Mohd Noor, A. H. and Omer, S. M. S. The conjugacy classes of some finite metabelian groups and their related graphs. Jurnal Teknologi. 79(1), 69 – 73, 2017.

Marcus, D. A. Graph theory: A problem oriented approach. The Mathematical Association of America. Washington. 2008.

MacHale, D. How commutative can a non-commutative group be? The Mathematical Gazette. 58(405), 199 – 202, 1974.

Omer, S. M. S., Erfanian, A. and Sarmin, N. H. The orbit graph of finite non-abelian groups. International Journal of Pure and Applied Mathematics. 102(4), 745 – 755, 2015.

Downloads

Published

25-10-2018