Centrality and connectors in Maltsev categories

Centrality and connectors in Maltsev categories
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Maltsev 类别中的中心性和连接器

DOI:
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发表时间:
2002
期刊:
影响因子:
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通讯作者:
M. Gran
M. Gran
中科院分区:
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文献类型:
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作者:
D. Bourn;M. Gran

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抽象的。我们开发了一种新的方法来等价关系的中心性的经典性质。内部概念的连接器允许澄清经典的结果在Maltsev品种和扩展他们在更一般的情况下,经常Maltsev类别,因此包括重要的新的例子Maltsev quasivarieties和拓扑Maltsev代数。我们还证明了Maltsev范畴可以用连接子的性质来刻画。
Abstract. We develop a new approach to the classical property of centrality of equivalence relations. The internal notion of connector allows to clarify classical results in Maltsev varieties and to extend them in the more general context of regular Maltsev categories, hence including the important new examples of Maltsev quasivarieties and of topological Maltsev algebras. We also prove that Maltsev categories can be characterized in terms of a property of connectors.