The character spectrum of \(\beta \mathbb N\)

DOI10.1016/j.topol.2011.08.014zbMath1312.03030arXiv1004.2083OpenAlexW2015549426MaRDI QIDQ649615

Saharon Shelah

Publication date: 2 December 2011

Published in: Topology and its Applications (Search for Journal in Brave)

Full work available at URL: https://arxiv.org/abs/1004.2083

zbMATH Keywords

characterforcingcardinal invariantsultrafilters

Mathematics Subject Classification ID

Consistency and independence results (03E35) Cardinality properties (cardinal functions and inequalities, discrete subsets) (54A25) Cardinal characteristics of the continuum (03E17)

Related Items (5)

On the cofinality of the splitting number ⋮ The ultrafilter number for singular cardinals ⋮ A parallel to the null ideal for inaccessible \(\lambda\). I ⋮ Pseudo P-points and splitting number ⋮ On the spectrum of characters of ultrafilters

Cites Work

• Two cardinal invariants of the continuum \(({\mathfrak d} <{\mathfrak a})\) and FS linearly ordered iterated forcing
• Ultrafilters on 𝜔-their ideals and their cardinal characteristics
• The spectrum of characters of ultrafilters on ω
• Ultrafilters and Independent Sets
• Unnamed Item

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