On coherent systems of projections for n1-separable groups

Paul C. Eklof, Alan H. Mekler, Saharon Shelah

Research output: Contribution to journalArticlepeer-review

17 Scopus citations

Abstract

It is proved consistent with either CH or -CH that there is an N1-separable group of cardinality N1which does not have a coherent system of projections. It had previously been shown that it is consistent with -CH that every N1-separable group of cardinality N1does have a coherent system of projections.

Original languageEnglish
Pages (from-to)343-353
Number of pages11
JournalCommunications in Algebra
Volume21
Issue number1
DOIs
StatePublished - 1 Jan 1993

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