Title of article :
A countable Fréchet–Urysohn space of uncountable character
Author/Authors :
Simon، نويسنده , , Petr، نويسنده ,
Issue Information :
دوماهنامه با شماره پیاپی سال 2008
Abstract :
We shall construct a countable Fréchet–Urysohn α 4 not α 3 space X such that all finite powers of X are Fréchet–Urysohn.
Keywords :
Fréchet–Urysohn space , ? 4 -space , Almost disjoint family , ? 3 -space
Journal title :
Topology and its Applications
Journal title :
Topology and its Applications
