【摘 要】
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A semigroup S is called an eventually regular semigroup if for every a ∈ S,there exists a positive integer n such that an is regular. In this paper, the R-unip
【机 构】
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Department of Mathematics, Lanzhou University Lanzhou, Gansu 730000, China
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A semigroup S is called an eventually regular semigroup if for every a ∈ S,there exists a positive integer n such that an is regular. In this paper, the R-unipotent,inverse semigroup and group congruences on an eventually regular semigroup S are described by means of certain congruence pairs (ξ, K), where ξ is a normal congruence on the subsemigroup generated by E(S), and K is a normal subsemigroup of S.
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