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arXiv · 2202.09902

Complicated colorings, revisited

Assaf Rinot·Jing Zhang
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Abstract

In a paper from 1997, Shelah asked whether $Pr_1(\lambda^+,\lambda^+,\lambda^+,\lambda)$ holds for every inaccessible cardinal $\lambda$. Here, we prove that an affirmative answer follows from $\square(\lambda^+)$. Furthermore, we establish that for every pair $\chi<\kappa$ of regular uncountable cardinals, $\square(\kappa)$ implies $Pr_1(\kappa,\kappa,\kappa,\chi)$.

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Assaf Rinot, Jing Zhang. 2022-02-20. Complicated colorings, revisited. https://arxiv.org/abs/2202.09902

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