Congruences on Metaorthodox Semigroups
Received:September 02, 1990  
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Zeng Xiangjin Dept. of Math.
Jingzhou Teachers College 
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      We introduce some new congruences on a metaorthodox semigroup and discuss their relationship. By use of the concept of hyper-trace and kernel we also discuss the relations between any congruence and special congruence on S. Moreover, it describes the max-imum idempotent-separating congruence on S, and gets a few conditions of equivalence that S/μ≌ E.
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