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The structure of Ext(A, Z) and GCH: possible co-Moore spaces

The structure of Ext(A, Z) and GCH: possible co-Moore spaces We investigate what ${\rm Ext}(A,\mathbb{Z})$ can be when A is torsion-free and ${\rm Hom}(A,\mathbb{Z})=0$ . We thereby give an answer to a question of Golasiński and Gonçalves which asks for the divisible Abelian groups which can be the type of a co-Moore space. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Mathematische Zeitschrift Springer Journals

The structure of Ext(A, Z) and GCH: possible co-Moore spaces

Eklof, Paul C.; Shelah, Saharon
Mathematische Zeitschrift , Volume 239 (1) – Jan 1, 2002
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References (13)

Publisher
Springer Journals
Copyright
Copyright © 2002 by Springer-Verlag Berlin Heidelberg
Subject
Legacy
ISSN
0025-5874
eISSN
1432-1823
DOI
10.1007/s002090100288
Publisher site
See Article on Publisher Site

Abstract

We investigate what ${\rm Ext}(A,\mathbb{Z})$ can be when A is torsion-free and ${\rm Hom}(A,\mathbb{Z})=0$ . We thereby give an answer to a question of Golasiński and Gonçalves which asks for the divisible Abelian groups which can be the type of a co-Moore space.

Journal

Mathematische Zeitschrift – Springer Journals

Published: Jan 1, 2002

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