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ON SOME PARTIAL ORDERS ON A CERTAIN SUBSET OF THE POWER SET OF RINGS

2020    Dolinar, Grecor; Kuzma, Bojan; Marovt, Janko; Ungor, Burgu

Let R be a ring with identity and let J(R) be a collection of subsets of R. such that their left and right annihilators are generated by the same idempotent. We extend the notion of the sharp, the left-sharp, and the right-sharp partial orders to J(R), present equivalent definitions of these orders, and study their properties. We also extend the concept of the core and the dual core orders to J(R), show that they are indeed partial orders when R. is a Baer *-ring, and connect them with one-sided sharp and star partial orders.