On the number of countably compact group
โ
Artur Hideyuki Tomita
๐
Article
๐
1999
๐
Elsevier Science
๐
English
โ 88 KB
We show under MA(ฯ -centered) the existence of at least (2 ฯ ) + non-homeomorphic topological group topologies on the free Abelian group of size 2 ฯ which make it countably compact and separable. In particular, under GCH the maximum possible number of such topologies is attained. As a corollary, we