The local limit of rooted directed animals on the square lattice

Fuente: arXiv
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Hauptverfasser: Hénard, Olivier, Maurel-Segala, Édouard, Singh, Arvind
Format: Preprint
Veröffentlicht: 2024
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author Hénard, Olivier
Maurel-Segala, Édouard
Singh, Arvind
author_facet Hénard, Olivier
Maurel-Segala, Édouard
Singh, Arvind
contents We consider the local limit of finite uniformly distributed directed animals on the square lattice viewed from the root. Two constructions of the resulting uniform infinite directed animal are given: one as a heap of dominoes, constructed by letting gravity act on a right-continuous random walk and one as a Markov process, obtained by slicing the animal horizontally. We look at geometric properties of this local limit and prove, in particular, that it consists of a single vertex at infinitely many (random) levels. Several martingales are found in connection with the confinement of the infinite directed animal on the non-negative coordinates.
format Preprint
id arxiv_https___arxiv_org_abs_2401_12935
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle The local limit of rooted directed animals on the square lattice
Hénard, Olivier
Maurel-Segala, Édouard
Singh, Arvind
Probability
Combinatorics
82B41, 60K35
We consider the local limit of finite uniformly distributed directed animals on the square lattice viewed from the root. Two constructions of the resulting uniform infinite directed animal are given: one as a heap of dominoes, constructed by letting gravity act on a right-continuous random walk and one as a Markov process, obtained by slicing the animal horizontally. We look at geometric properties of this local limit and prove, in particular, that it consists of a single vertex at infinitely many (random) levels. Several martingales are found in connection with the confinement of the infinite directed animal on the non-negative coordinates.
title The local limit of rooted directed animals on the square lattice
topic Probability
Combinatorics
82B41, 60K35
url https://arxiv.org/abs/2401.12935