The structure of Ext(A,Z) and GCH: possible co-Moore spaces
Logic
2007-05-23 v1 Group Theory
Abstract
We consider what Ext(A,Z) can be when A is torsion-free and Hom(A,Z)=0. We thereby give an answer to a question of Golasinski and Goncalves which asks for the divisible Abelian groups which can be the type of a co-Moore space.
Cite
@article{arxiv.math/0303344,
title = {The structure of Ext(A,Z) and GCH: possible co-Moore spaces},
author = {Paul C. Eklof and Saharon Shelah},
journal= {arXiv preprint arXiv:math/0303344},
year = {2007}
}