摘要
首先定义了Δ＿半群，然后在纯正半群上引入了关系Ｆ，Ｃ，Ｆ°和Ｃ°．由此，给出并证明了Δ＿半群上最大幂等元纯同余。
By means of the definition of Δ_semigroup and the relations on orthodox semigroups, some equivalent characterizations of the greatest idempotent pure congruence, the greatest idempotent separating congruence and the least group congruence on Δ_semigroups are proved respectively.
出处
《曲阜师范大学学报（自然科学版）》
CAS
1997年第2期28-32,共5页
Journal of Qufu Normal University(Natural Science)
