Convergence to the Brownian CRT for critical branching Markov processe

Fuente: arXiv
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Main Authors: Horton, Emma, Powell, Ellen
Format: Preprint
Published: 2026
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author Horton, Emma
Powell, Ellen
author_facet Horton, Emma
Powell, Ellen
contents We prove an invariance principle for a general class of continuous time critical branching processes with finite variance (non-local) branching mechanism. We show that the genealogical trees, viewed as random compact metric measure spaces, converge under rescaling to the Brownian continuum random tree in the Gromov-Hausdorff-weak topology, establishing a universal scaling limit for critical finite variance branching processes.
format Preprint
id arxiv_https___arxiv_org_abs_2601_05906
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Convergence to the Brownian CRT for critical branching Markov processe
Horton, Emma
Powell, Ellen
Probability
We prove an invariance principle for a general class of continuous time critical branching processes with finite variance (non-local) branching mechanism. We show that the genealogical trees, viewed as random compact metric measure spaces, converge under rescaling to the Brownian continuum random tree in the Gromov-Hausdorff-weak topology, establishing a universal scaling limit for critical finite variance branching processes.
title Convergence to the Brownian CRT for critical branching Markov processe
topic Probability
url https://arxiv.org/abs/2601.05906