Units in finite dihedral and quaternion group algebras

Authors

Department of Mathematics, Indian Institute of Technology Delhi, New Delhi, India

10.21608/joems.2016.386732

Abstract

Let FqG be the group algebra of a finite group G over Fq ¼ GFðqÞ. Using the Wedderburn
decomposition of F2kD2n=JðF2kD2nÞ, we establish the structure of the unit group of F2kG when G is
either D4n, the dihedral group of order 4n or Q4n, the generalized quaternion group of order 4n; n
odd.

Keywords