A uniform ultrafilter over a singular cardinal with a singular character

Research output: Contribution to journalArticlepeer-review

Abstract

We construct a model with a uniform ultrafilter U over a singular strong limit cardinal κ such that κ< cof (Ch (U)) < Ch (U) < 2 κ.

Original languageEnglish
Pages (from-to)325-332
Number of pages8
JournalActa Mathematica Hungarica
Volume162
Issue number1
DOIs
StatePublished - 1 Oct 2020

Keywords

  • forcing
  • singular character
  • ultrafilter

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