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arXiv 2408.05973math.LO
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奇异基数处的Baire性质与完美集性质

The Baire and perfect set properties at singulars cardinals

Vincenzo Dimonte, Alejandro Poveda, Sebastiano Thei

AI总结:

本文在ZFC中构造含奇异基数κ的模型,使L(V_{κ+1})内所有κ子集兼具κ-完美集性质与\mathcal{\vec{U}}-Baire性质,并以超紧性大基数假设改进已有结果。

摘要:

我们构造了一个ZFC模型,其中存在奇异基数κ,使得L(V_{κ+1})中κ的每个子集同时具有κ-完美集性质和\mathcal{\vec{U}}-Baire性质。这是Solovay关于L(\mathbb{R})结果的更高阶类比。我们从超紧性范围内的大基数假设出发获得这一构型,从而改进了Cramer、Shi和Woodin先前的定理。

英文摘要:

We construct a model of ZFC with a singular cardinal $κ$ such that every subset of $κ$ in $L(V_{κ+1})$ has both the $κ$-Perfect Set Property and the $\mathcal{\vec{U}}$-Baire Property. This is a higher analogue of Solovay's result for $L(\mathbb{R})$. We obtain this configuration starting with large-cardinal assumptions in the realm of supercompactness, thus improving former theorems by Cramer, Shi and Woodin.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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