Authors: Kurdistan M. Ali1 & Parween A. Hummadi2
1Salahaddin University, College of Science, Department of Mathematics
2Salahaddin University, College of Education, Department of Mathematics
Abstract: In this paper we study semi nilpotent elements in rings. It is shown that every element of Z nwhere n is square free is a trivial semi nilpotent. It is proved that every nontrivial nilpotent element is a nontrivial semi nilpotent. Conditions are given under which every element of the group ring ZnG is semi nilpotent. It is shown that if p is prime and p divides the order of G, then ZpG has nontrivial semi nilpotent. Also it is proved that if G is a cyclic group of order qn, then every element of ZpG, p is prime, is semi nilpotent.
Keywords: Nilpotent, Semi Nilpotent
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