The Units and Idempotents in the Group Ring of a Finite Cyclic Group
Commun. Korean Math. Soc. 1997 Vol. 12, No. 4, 855-864
Won-Sun Park Chonnam National University
Abstract : Let $K$ be a algebraically closed field of characteristic 0 and $G$ a cyclic group of order $n$. We find the units and idempotent elements of the group ring $KG$ by using the basic group table matrix of $G$.
Keywords : basic group table matrix, represented matrix, represented polynomial