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math.PR2026

Large deviations for maximum local time of simple random walk in dimensions

Xinyi Li, Yushu Zheng

We obtain sharp asymptotic probabilities for upward deviations of the maximum local time of discrete- and continuous-time simple random walks on , . For downw…

math.PR2026

Tail exponents of the three-dimensional uniform spanning tree and Abelian sandpile

Xinyi Li, Runsheng Liu, Daisuke Shiraishi

We study the local geometry of the three-dimensional uniform spanning tree and its connection with the Abelian sandpile model. We obtain sharp tail exponents, up to subpolynomial e…

math.PR2026

Generalized intersection exponents and local cut points for three-dimensional Brownian loop soup

Yifan Gao, Ruixuan Li, Xinyi Li

We study generalized non-intersection probabilities for the three-dimensional Brownian loop soup at subcritical intensities. We establish the existence of generalized intersection…

math.PR2025

Favorite sites for simple random walk in two and more dimensions

Chenxu Hao, Xinyi Li, Izumi Okada +1

On the trace of a discrete-time simple random walk on for , we consider the evolution of favorite sites, i.e., sites that achieve the maximal local time at…

math.PR2025

Asymptotics for the percolation threshold of finitary random interlacements in four and higher dimensions

Yijie Bi, Zhenhao Cai, Xinyi Li +2

We establish sharp asymptotic bounds for the critical intensity of the Finitary Random Interlacements (FRI) model in four and higher dimensions with general trajectory length distr…

math.PR2025

Full extremal process in four-dimensional membrane model

Hao Ge, Xinyi Li, Jiaxi Zhao

We investigate the extremal process of four-dimensional membrane models as the size of the lattice tends to infinity. We prove the cluster-like geometry of the extreme points a…