On the subcritical self-catalytic branching Brownian motions

Fuente: arXiv
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Main Authors: Hou, Haojie, Sun, Zhenyao
Format: Preprint
Published: 2025
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author Hou, Haojie
Sun, Zhenyao
author_facet Hou, Haojie
Sun, Zhenyao
contents The self-catalytic branching Brownian motions (SBBM) are extensions of the classical one-dimensional branching Brownian motions by incorporating pairwise branchings catalyzed by the intersection local times of the particle pairs. These processes naturally arise as the moment duals of certain reaction-diffusion equations perturbed by multiplicative space-time white noise. For the subcritical case of the catalytic branching mechanism, we construct the SBBM allowing an infinite number of initial particles. Additionally, we establish the coming down from infinity (CDI) property for these systems and characterize their CDI rates.
format Preprint
id arxiv_https___arxiv_org_abs_2501_16739
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle On the subcritical self-catalytic branching Brownian motions
Hou, Haojie
Sun, Zhenyao
Probability
Mathematical Physics
The self-catalytic branching Brownian motions (SBBM) are extensions of the classical one-dimensional branching Brownian motions by incorporating pairwise branchings catalyzed by the intersection local times of the particle pairs. These processes naturally arise as the moment duals of certain reaction-diffusion equations perturbed by multiplicative space-time white noise. For the subcritical case of the catalytic branching mechanism, we construct the SBBM allowing an infinite number of initial particles. Additionally, we establish the coming down from infinity (CDI) property for these systems and characterize their CDI rates.
title On the subcritical self-catalytic branching Brownian motions
topic Probability
Mathematical Physics
url https://arxiv.org/abs/2501.16739