Article ID Journal Published Year Pages File Type
4658822 Topology and its Applications 2014 15 Pages PDF
Abstract

A Toronto space is a topological space that is homeomorphic to every one of its full-cardinality subspaces, and the Toronto problem asks whether every Hausdorff Toronto space of size ℵ1ℵ1 is discrete. We examine compactness properties, convergence properties, and separation properties of non-discrete Hausdorff Toronto spaces of size ℵ1ℵ1, and we classify the non-T1T1 Toronto spaces of any infinite size.

Related Topics
Physical Sciences and Engineering Mathematics Geometry and Topology
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