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arXiv 2504.02435math.PRmath.GR
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高秩中的 Poisson-Voronoi 渗流

Poisson-Voronoi percolation in higher rank

Jan Grebík, Konstantin Recke

AI总结:

本文证明在具有性质(T)的连通高秩半单Lie群对称空间中,Poisson-Voronoi渗流的唯一性阈值在低强度极限下趋于零,并基于此为Gaboriau固定价格问题提供新证明及新的非顺从Cayley图实例。

摘要:

我们证明,在具有性质 (T) 的连通高秩半单 Lie 群的对称空间中,Poisson-Voronoi 渗流的唯一性阈值在低强度极限下收敛于零。这一现象与先前研究 Poisson-Voronoi 渗流的情况根本不同。我们的方法建立在 Fraczyk、Mellick 和 Wilkens(arXiv:2307.01194)的最新突破之上,并为 Gaboriau 的固定价格问题提供了另一种证明策略。作为我们结果的进一步应用,我们给出了一类新的非顺从 Cayley 图的例子,它们容许具有唯一无穷簇和任意小期望度的 factor of iid bond 渗流,回答了一个受 Hutchcroft-Pete(Invent. math. 221 (2020))启发的问题。

英文摘要:

We show that the uniqueness thresholds for Poisson-Voronoi percolation in symmetric spaces of connected higher rank semisimple Lie groups with property (T) converge to zero in the low-intensity limit. This phenomenon is fundamentally different from situations in which Poisson-Voronoi percolation has previously been studied. Our approach builds on a recent breakthrough of Fraczyk, Mellick and Wilkens (arXiv:2307.01194) and provides an alternative proof strategy for Gaboriau's fixed price problem. As a further application of our result, we give a new class of examples of non-amenable Cayley graphs that admit factor of iid bond percolations with a unique infinite cluster and arbitrarily small expected degree, answering a question inspired by Hutchcroft-Pete (Invent. math. 221 (2020)).}

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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