Branching capacity of a random walk in $\mathbb Z^5$

Tianyi Bai; Jean-François Delmas; Yueyun Hu

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arXiv · 2404.19447

Branching capacity of a random walk in $\mathbb Z^5$

Tianyi Bai·Jean-François Delmas·Yueyun Hu

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Abstract

We are interested in the branching capacity of the range of a random walk in $\mathbb Z^d$.Schapira [28] has recently obtained precise asymptotics in the case $d\ge 6$ and has demonstrated a transition at dimension $d=6$. We study the case $d=5$ and prove that the renormalized branching capacity converges in law to the Brownian snake capacity of the range of a Brownian motion. The main step in the proof relies on studying the intersection probability between the range of a critical Branching random walk and that of a random walk, which is of independent interest.

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BibTeX RIS

Tianyi Bai, Jean-François Delmas, Yueyun Hu. 2024-04-30. Branching capacity of a random walk in $\mathbb Z^5$. https://arxiv.org/abs/2404.19447

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