A topological application of flat morasses

• Autorzy: R. W. Knight
• Języki publikacji: EN

Abstrakty

EN

We define combinatorial structures which we refer to as flat morasses, and use them to construct a Lindelöf space with points $G_δ$ of cardinality $ℵ_ω$, consistent with GCH. The construction reveals, it is hoped, that flat morasses are a tool worth adding to the kit of any user of set theory.

Kategorie tematyczne

• 03E65: Other hypotheses and axioms
• 54D20: Noncompact covering properties (paracompact, Lindel\"of, etc.)
• 03E45: Inner models, including constructibility, ordinal definability, and core models
• 03E35: Consistency and independence results

• Wydawca: Institute of Mathematics Polish Academy of Sciences
• Czasopismo: Fundamenta Mathematicae
• Rocznik: 2007
• Tom: 194
• Numer: 1
• Strony: 45-66

Daty

wydano

2007

Twórcy

autor

R. W. Knight

• Mathematical Institute, 24-29 St Giles, Oxford, UK

Identyfikatory

DOI

10.4064/fm194-1-3