Non-existence of several random fractals in Brownian motion and Brownian loop soup

Fuente: arXiv
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Autori principali: Gao, Yifan, Li, Xinyi, Liu, Runsheng, Qian, Wei
Natura: Preprint
Pubblicazione: 2025
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author Gao, Yifan
Li, Xinyi
Liu, Runsheng
Qian, Wei
author_facet Gao, Yifan
Li, Xinyi
Liu, Runsheng
Qian, Wei
contents We develop a unified approach to establish the non-existence of three types of random fractals: (1) the pioneer triple points of the planar Brownian motion, answering an open question in [7], (2) the pioneer double cut points of the planar and three-dimensional Brownian motions, and (3) the double points on the boundaries of the clusters of the planar Brownian loop soup at the critical intensity, answering an open question in [39]. These fractals have the common feature that they are associated with an intersection or disconnection exponent which yields a Hausdorff dimension ``exactly zero''.
format Preprint
id arxiv_https___arxiv_org_abs_2507_20324
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Non-existence of several random fractals in Brownian motion and Brownian loop soup
Gao, Yifan
Li, Xinyi
Liu, Runsheng
Qian, Wei
Probability
60J65 (Primary) 28A80 (Secondary)
We develop a unified approach to establish the non-existence of three types of random fractals: (1) the pioneer triple points of the planar Brownian motion, answering an open question in [7], (2) the pioneer double cut points of the planar and three-dimensional Brownian motions, and (3) the double points on the boundaries of the clusters of the planar Brownian loop soup at the critical intensity, answering an open question in [39]. These fractals have the common feature that they are associated with an intersection or disconnection exponent which yields a Hausdorff dimension ``exactly zero''.
title Non-existence of several random fractals in Brownian motion and Brownian loop soup
topic Probability
60J65 (Primary) 28A80 (Secondary)
url https://arxiv.org/abs/2507.20324