Article ID Journal Published Year Pages File Type
4658529 Topology and its Applications 2015 7 Pages PDF
Abstract
It is proved that the existence of a countable extremally disconnected Boolean topological group containing a family of open subgroups whose intersection has empty interior implies the existence of a rapid ultrafilter.
Related Topics
Physical Sciences and Engineering Mathematics Geometry and Topology
Preview
Nonexistence of countable extremally disconnected groups with many open subgroups
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