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arXiv 2312.04099math.PRmath-phmath.MP
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临界值的连续性与长程渗透的形状定理

Continuity of the critical value and a shape theorem for long-range percolation

University of Koblenz(科布伦茨大学)

Johannes Bäumler

AI总结:

研究了长程渗透中临界值的连续性及无限簇中可达点的形状定理,揭示了模型精确规格对临界值的影响。

摘要:

考虑在$\Z^d$上超临界长程渗透,其中两点$x,y\in\Z^d$连接的概率渐近于$\|x-y\|^{-s}$,其中$s>2d$。在原点处于无限簇的条件下,证明了从原点出发在$n$步内可达点集的形状定理。作为证明的一部分,我们展示了在$d\geq2$维中,长程渗透的临界值依赖于模型的精确规格而连续。

英文摘要:

Consider supercritical long-range percolation on $\Z^d$ where two vertices $x,y \in \Z^d$ are connected with probability asymptotic to $\|x-y\|^{-s}$ for some $s>2d$. Conditioned that the origin is in the infinite cluster, we prove a shape theorem for the set of points that can be reached within $n$ steps from the origin. As part of the proof, we show that for long-range percolation with polynomially decaying connection probabilities in dimensions $d\geq 2$, the critical value depends continuously on the precise specifications of the model.

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