1. On 픽qCn group ring such that every element is a sum of two commuting potents.
- Author
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Lai, Wei Kit, Qua, Kiat Tat, and Wong, Denis Chee Keong
- Subjects
RING theory ,GROUP rings ,CYCLIC groups ,FINITE fields ,FINITE groups ,ASSOCIATIVE rings - Abstract
Let R be a associative ring with identity. The problem of characterizing rings, based on the property that every element in R is the sum of two elements with specific attributes, is a major area of study in ring theory. Hirano and Tominaga (1988) showed that if R is a ring in which every element is the sum of two commuting idempotents, then every element in R is tripotent. Following that, Ying et al. (2016) gave some characterizations of the ring R where every element is the sum of two commuting tripotent elements. In general, characterizing R such that every element in R is a sum of two commuting m-potent for a given positive integer m, remains an open problem. This paper will provide some answers to the aforementioned problem over the 픽
q Cn group ring, where 픽q is a finite field of order q and Cn is a finite cyclic group or order n. In conclusion, this paper provides a general method to compute the characteristic of 픽q Cn group ring such that every element is a sum of two commuting m-potent. Furthermore, the characteristic of the 픽q Cn group ring can be used to characterize the group ring as a group ring that has Sm,2 property, thereby providing additional properties about 픽q Cn . [ABSTRACT FROM AUTHOR]- Published
- 2024
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