The tightness about sequential fans and combinatorial properties

DOI10.2969/JMSJ/04910181zbMath0898.03019OpenAlexW2047680731MaRDI QIDQ1389862

Katsuya Eda, Masaru Kada, Yoshifumi Yuasa

Publication date: 8 November 1998

Published in: Journal of the Mathematical Society of Japan (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.2969/jmsj/04910181

zbMATH Keywords

consistencytightnessproduct spacecardinal invariantCohen forcingsequential fanHechler forcingunbounded family

Mathematics Subject Classification ID

Consistency and independence results (03E35) Other combinatorial set theory (03E05)

Related Items (2)

Characters of ultrafilters and tightness of products of fans ⋮ Cardinal invariants about shrinkability of unbounded sets

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