A random recursive tree model with doubling events

Fuente: arXiv
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Autori principali: Björnberg, Jakob E., Mailler, Cécile
Natura: Preprint
Pubblicazione: 2025
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author Björnberg, Jakob E.
Mailler, Cécile
author_facet Björnberg, Jakob E.
Mailler, Cécile
contents We introduce a new model of random tree that grows like a random recursive tree, except at some exceptional "doubling events" when the tree is replaced by two copies of itself attached to a new root. We prove asymptotic results for the size of this tree at large times, its degree distribution, and its height profile. We also prove a lower bound for its height. Because of the doubling events that affect the tree globally, the proofs are all much more intricate than in the case of the random recursive tree in which the growing operation is always local.
format Preprint
id arxiv_https___arxiv_org_abs_2501_18466
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle A random recursive tree model with doubling events
Björnberg, Jakob E.
Mailler, Cécile
Probability
We introduce a new model of random tree that grows like a random recursive tree, except at some exceptional "doubling events" when the tree is replaced by two copies of itself attached to a new root. We prove asymptotic results for the size of this tree at large times, its degree distribution, and its height profile. We also prove a lower bound for its height. Because of the doubling events that affect the tree globally, the proofs are all much more intricate than in the case of the random recursive tree in which the growing operation is always local.
title A random recursive tree model with doubling events
topic Probability
url https://arxiv.org/abs/2501.18466