Abstract
Recently J. Cresp and R. P. Sullivan (1975) investigated those rings R with the following properties: (*) every multiplicative subsemigroup of R is a subring. (**) every multiplicative subsemigroup of R containing 0 is a subring. For rings with (*) they obtained the following characterization.
Publisher
Cambridge University Press (CUP)
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Cited by
4 articles.
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1. Associative rings;Journal of Soviet Mathematics;1987-08
2. Rings satisfying certain conditions either on subsemigroups or on endomorphisms;Journal of the Australian Mathematical Society. Series A. Pure Mathematics and Statistics;1986-04
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