Authors: Parween Ali Hummadi1 & Suham Hamad Awla2
1&2University of Salahaddin, Mathematics Department, College of Education
Abstract: In this paper we study semiunit elements in the group ring Z2G, where G is a cyclic group and we introduce and discuss strongly semiunit elements in Zn, for n=p, 2p, p2 where p is an odd prime. We define and study tri-regular elements in Zn and in the group ring, Z2G where G is a cyclic group.
Keywords: Semiunit, Strongly Semiunit and Tri-Regular Element
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