On absolutely divergent series

Sakaé Fuchino; Heike Mildenberger; Saharon Shelah; Peter Vojtáš

doi:10.4064/fm_1999_160_3_1_255_268

On absolutely divergent series

Sakaé Fuchino^*, Heike Mildenberger, Saharon Shelah, Peter Vojtáš

^*Corresponding author for this work

Einstein Institute of Mathematics

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

We show that in the א₂-stage countable support iteration of Mathias forcing over a model of CH the complete Boolean algebra generated by absolutely divergent series under eventual dominance is not isomorphic to the completion of P(ω)/fin. This complements Vojtáš' result that under cf(c) = p-fractur sign the two algebras are isomorphic [15].

Original language	English
Pages (from-to)	255-268
Number of pages	14
Journal	Fundamenta Mathematicae
Volume	160
Issue number	3
DOIs	https://doi.org/10.4064/fm_1999_160_3_1_255_268
State	Published - 1999

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10.4064/fm_1999_160_3_1_255_268

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title = "On absolutely divergent series",

abstract = "We show that in the א2-stage countable support iteration of Mathias forcing over a model of CH the complete Boolean algebra generated by absolutely divergent series under eventual dominance is not isomorphic to the completion of P(ω)/fin. This complements Vojt{\'a}{\v s}' result that under cf(c) = p-fractur sign the two algebras are isomorphic [15].",

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AU - Shelah, Saharon

AU - Vojtáš, Peter

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AB - We show that in the א2-stage countable support iteration of Mathias forcing over a model of CH the complete Boolean algebra generated by absolutely divergent series under eventual dominance is not isomorphic to the completion of P(ω)/fin. This complements Vojtáš' result that under cf(c) = p-fractur sign the two algebras are isomorphic [15].

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On absolutely divergent series

Abstract

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