| RESEARCH ANNOUNCEMENTS Block Separating Congruence Lattices . of .E-bisimple Semigroups |
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| 作者姓名： | 汪立民 张静 |
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| 作者单位： | Dept. of Math.，South China Normal Univ.，Guangzhou，Guangdong，510631，P. R. China，Dept. of Math.，South China Normal Univ.，Guangzhou，Guangdong，510631，P. R. China |
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| 基金项目： | MR(1991)Subject Classification:20M10 Supported By Natural Science Foundation of Guangdong Province(011438). |
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| 摘 要： | In 1966, Reilly1] Characterized bisimple ω-semigroups as Bruck-Reilly extensions of Groups. Later, Munn and Reilly2] proved that a congruence on a bisimple ω-semigroup is a group congruence or is idempotent-separating. Many author investigated the congruences on Bruck-Reilly extensions of some semigroups for about twenty years. In this paper, we study the block-separating
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