A non-reflexive Whitehead group

Thumbnail Image

Date

Authors

Journal Title

Journal ISSN

Volume Title

Publisher

Abstract

Description

We prove that it is consistent that there is a non-reflexive Whitehead group, in fact one whose dual group is free. We also prove that it is consistent that there is a group A such that Ext(A,Z) is torsion and Hom(A,Z)=0. As an application we show the consistency of the existence of new co-Moore spaces.

Keywords

Logic, Commutative Algebra, Rings and Algebras, Primary 20K35, 20K20, 03E35, 03E75; Secondary 13L05, 18G15, 55N10

Citation

URI

http://salesiana.dossiersoluciones.com/handle/123456789/79026

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/math/9908157
 http://arxiv.org/abs/math/9908157
 J. Pure Appl. Algebra 156 No. 2-3 (2001) 199--214

Collections

arXiv