On the cofinality of the splitting number

Alan Dow*, Saharon Shelah

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

The splitting number s can be singular. The key method is to construct a forcing poset with finite support matrix iterations of ccc posets introduced by Blass and Shelah (1989).

Original languageEnglish
Pages (from-to)382-395
Number of pages14
JournalIndagationes Mathematicae
Volume29
Issue number1
DOIs
StatePublished - Feb 2018

Bibliographical note

Publisher Copyright:
© 2017 Royal Dutch Mathematical Society (KWG)

Keywords

  • Cardinal invariants of the continuum
  • Matrix forcing
  • Splitting number

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