dorsal/arxiv
View SchemaMinimum and extremal process for a branching random walk outside the boundary case
| Authors | Xinxin Chen, Haojie Hou |
|---|---|
| Categories | |
| ArXiv ID | 2601.07129vv1 |
| URL | https://arxiv.org/abs/2601.07129 |
| License | http://creativecommons.org/licenses/by/4.0/ |
Abstract
This work extends the studies on the minimum and extremal process of a supercritical branching random walk outside the boundary case which cannot be reduced to the boundary case. We study here the situation where the log-generating function explodes at $1$ and the random walk associated to the spine possesses a stretched exponential tail with exponent $b\in(0,\frac12)$. Under suitable conditions, we confirm the conjecture of Barral, Hu and Madaule [Bernoulli 24(2) 2018 801-841], and obtain the weak convergence for the minimum and the extremal process. We also establish an a.s. infimum result over all infinity rays of this system.
{
"annotation_id": "890dbf74-6b4b-48d5-842c-4665c56b2867",
"date_created": "2026-02-17T05:53:11.272000Z",
"date_modified": "2026-02-17T05:53:11.272000Z",
"file_hash": "37a6672e058e51ca0ef55166cbe403d2d877845a96b27e641a3787226f2fa0b3",
"private": false,
"record": {
"abstract": "This work extends the studies on the minimum and extremal process of a supercritical branching random walk outside the boundary case which cannot be reduced to the boundary case. We study here the situation where the log-generating function explodes at $1$ and the random walk associated to the spine possesses a stretched exponential tail with exponent $b\\in(0,\\frac12)$. Under suitable conditions, we confirm the conjecture of Barral, Hu and Madaule [Bernoulli 24(2) 2018 801-841], and obtain the weak convergence for the minimum and the extremal process. We also establish an a.s. infimum result over all infinity rays of this system.",
"arxiv_id": "2601.07129",
"authors": [
"Xinxin Chen",
"Haojie Hou"
],
"categories": [
"math.PR"
],
"license": "http://creativecommons.org/licenses/by/4.0/",
"title": "Minimum and extremal process for a branching random walk outside the boundary case",
"url": "https://arxiv.org/abs/2601.07129",
"version": "v1"
},
"schema_id": "dorsal/arxiv",
"source": {
"execution_id": "8ee47a32-38ee-407b-82c2-a2bf8196df3e",
"id": "arXiv Dataset",
"type": "Model",
"variant": "snapshot-2026-01-17",
"version": "0.1.0"
},
"user_id": 1000002
}