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arXiv · 2301.02634

On disjoint stationary sequences

Maxwell Levine
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Abstract

We answer a question of Krueger by obtaining disjoint stationary sequences on successive cardinals. The main idea is an alternative presentation of a mixed support iteration, using it even more explicitly as a variant of Mitchell forcing. We also use a Mahlo cardinal to obtain a model in which $\aleph_2 \notin I[\aleph_2]$ and there is no disjoint stationary sequence on $\aleph_2$, answering a question of Gilton.

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Maxwell Levine. 2023-01-06. On disjoint stationary sequences. https://doi.org/10.2140/pjm.2024.332.147

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