Vague convergence and method of moments for random metric measure spaces

Fuente: arXiv
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Main Author: Foutel-Rodier, Félix
Format: Preprint
Published: 2024
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author Foutel-Rodier, Félix
author_facet Foutel-Rodier, Félix
contents We introduce a notion of vague convergence for random marked metric measure spaces. Our main result shows that convergence of the moments of order $k \ge 1$ of a random marked metric measure space is sufficient to obtain its vague convergence in the Gromov-weak topology. This result improves on previous methods of moments that also require convergence of the moment of order $k=0$, which in applications to critical branching processes amounts to estimating a survival probability. We also derive two useful companion results, namely a continuous mapping theorem and an approximation theorem for vague convergence of random marked metric measure spaces.
format Preprint
id arxiv_https___arxiv_org_abs_2402_05097
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Vague convergence and method of moments for random metric measure spaces
Foutel-Rodier, Félix
Probability
We introduce a notion of vague convergence for random marked metric measure spaces. Our main result shows that convergence of the moments of order $k \ge 1$ of a random marked metric measure space is sufficient to obtain its vague convergence in the Gromov-weak topology. This result improves on previous methods of moments that also require convergence of the moment of order $k=0$, which in applications to critical branching processes amounts to estimating a survival probability. We also derive two useful companion results, namely a continuous mapping theorem and an approximation theorem for vague convergence of random marked metric measure spaces.
title Vague convergence and method of moments for random metric measure spaces
topic Probability
url https://arxiv.org/abs/2402.05097