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arXiv · 2502.01646

More separations of cardinal characteristics of the strong measure zero ideal

Miguel A. Cardona·Miroslav Repický·Saharon Shelah
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Abstract

Let $\mathcal{N}$ be the $\sigma$-ideal of the null sets of reals. We introduce a new property of forcing notions that enable control of the additivity of $\mathcal{N}$ after finite support iterations. This is applied to answer some open questions from the work of Brendle, the first author, and Mej\'ia~\cite{BCM2}.

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Miguel A. Cardona, Miroslav Repický, Saharon Shelah. 2025-01-24. More separations of cardinal characteristics of the strong measure zero ideal. https://arxiv.org/abs/2502.01646

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