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On absolutely divergent series

Sakae Fuchino·Heike Mildenberger·Saharon Shelah·Peter Vojtas
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Abstract

We show that in the aleph_2-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(omega)/fin. This complements Vojtas' result, that under cf(c)=p the two algebras are isomorphic

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Sakae Fuchino, Heike Mildenberger, Saharon Shelah, Peter Vojtas. 1999-03-18. On absolutely divergent series. https://arxiv.org/abs/math/9903114

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