A characterization of Hausdorff separation for a special class of varieties

被引:2
作者
Bentz, Wolfram [1 ]
机构
[1] Wilfrid Laurier Univ, Dept Math, Waterloo, ON N2L 3C5, Canada
关键词
topological algebra; separation axioms; k-permutable variety; congruence modular variety;
D O I
10.1007/s00012-006-1966-0
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
In 1997, Coleman suggested that congruence modularity and n-permutability are necessary and sufficient properties for a variety to have all of its To-topological algebras be Hausdorff. The sufficiency part of this statement was later shown by Kearnes and Sequeira. Here we show that necessity holds for a certain subclass of varieties, hence providing a characterization of the property T-0 double right arrow T-2 in this particular case.
引用
收藏
页码:259 / 276
页数:18
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