Ultratopologies generated by generalized topologies

被引:2
|
作者
Császár, A [1 ]
机构
[1] Eotvos Lorand Univ, Dept Anal, H-1117 Budapest, Hungary
关键词
generalized topology; kernel operation; envelope operation; ultratopology;
D O I
10.1007/s10474-006-0011-2
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
It is proved a rather general version of the statement that if the union of arbitrary elements of a system lambda always belongs to lambda then the intersections of elements of lambda constitute an ultratopology ( i. e. a topology where intersections of open sets are open).
引用
收藏
页码:153 / 157
页数:5
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