What is a first countable space?
نویسندگان
چکیده
منابع مشابه
A First Countable, Initially Ω1-compact but Non-compact Space
We force a first countable, normal, locally compact, initially ω1-compact but non-compact space X of size ω2. The onepoint compactification of X is a non-first countable compactum without any (non-trivial) converging ω1-sequence.
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ژورنال
عنوان ژورنال: Topology and its Applications
سال: 2006
ISSN: 0166-8641
DOI: 10.1016/j.topol.2006.03.003