Affiliation:
1. Department of Mathematics, Technical and Vocational university (TVU), Tehran, Iran
Abstract
An associative ring with unity is called exchange if every element is
exchange, i.e., there exists an idempotent e ? aR such that 1?e ? (1?a)R; if
this representation is unique for every element, we call the ring uniquely
exchange. We give a complete description of uniquely exchange rings.
Publisher
National Library of Serbia
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