A non-reflexive Whitehead group

Paul C. Eklof*, Saharon Shelah

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

21 Scopus citations

Abstract

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.

Original languageEnglish
Pages (from-to)199-214
Number of pages16
JournalJournal of Pure and Applied Algebra
Volume156
Issue number2-3
DOIs
StatePublished - 23 Feb 2001

Keywords

  • 03E35
  • 03E75
  • 18G15
  • 20K20
  • 55N10
  • Primary 20K35
  • Secondary 13L05

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