International Journal of Mathematics and Mathematical Sciences
Volume 24 (2000), Issue 10, Pages 715-720
doi:10.1155/S0161171200002167
The Coxeter group Dn
M.A. Albar1
and Norah Al-Saleh2
1Department of Mathematical Sciences, King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia
2Department of Mathematics, College of Girls, Dammam, Saudi Arabia
Abstract
We show that the Coxeter group Dn is the split extension of n−1 copies of Z2 by Sn for a given action of Sn described in the paper. We also find the centre of Dn and some of its other important subgroups.