The tight groupoid of an inverse semigroup

The tight groupoid of an inverse semigroup
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逆半群的紧群群

DOI:
10.1007/s00233-015-9758-5
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发表时间:
2014
期刊:
影响因子:
0.7
通讯作者:
Enrique Pardo
Enrique Pardo
中科院分区:
数学3区
文献类型:
--
作者:
R. Exel;Enrique Pardo

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在这项工作中,我们提出了逆半群 S\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} 上的代数条件\begin{document}$$\mathcal {S}$$\end{document} (带零)这意味着其关联的紧群群 Gtight(S)\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\mathcal {G}_\mathrm{tight}(\mathcal {S})$$\end{document} 是:Hausdorff,本质上分别是主要的、最小的和收缩的。在某些情况下,这些条件实际上是必要且充分的。
In this work we present algebraic conditions on an inverse semigroup S\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\mathcal {S}$$\end{document} (with zero) which imply that its associated tight groupoid Gtight(S)\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\mathcal {G}_\mathrm{tight}(\mathcal {S})$$\end{document} is: Hausdorff, essentially principal, minimal and contracting, respectively. In some cases these conditions are in fact necessary and sufficient.