Topological regular semigroups and topological inductive groupoids (Q1209277)

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scientific article; zbMATH DE number 167674
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Topological regular semigroups and topological inductive groupoids
scientific article; zbMATH DE number 167674

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    Topological regular semigroups and topological inductive groupoids (English)
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    16 May 1993
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    The author establishes a topological version of the correspondence between regular semigroups and inductive groupoids given by \textit{K. S. S. Nambooripad} [Mem. Am. Math. Soc. 224, 117 p. (1979; Zbl 0457.20051)]. He defines concepts of topological regular semigroup and topological inductive groupoid, and proves that the regular semigroup corresponding to a topological inductive groupoid is a topological regular semigroup. Given a topological regular semigroup, he proves that the corresponding inductive groupoid \(G\) is a topological inductive groupoid and, further, has a basis of open sets \(W\) such that if \(\gamma\in G\) is such that there exist \(\alpha, \beta\in W\) with \(\alpha p \gamma\) and \(\beta^{-1} p \gamma^{-1}\), then \(\gamma\in W\); here \(p\) is the standard equivalence relation on \(G\) (op. cit.). These constructions are mutually inverse for the classes described.
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    regular semigroups
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    inductive groupoids
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