Gibbsianness of locally thinned random fields
Abstract
We consider the locally thinned Bernoulli field on , which is the lattice version of the Type-I Mat\'ern hardcore process in Euclidean space. It is given as the lattice field of occupation variables, obtained as image of an i.i.d. Bernoulli lattice field with occupation probability , under the map which removes all particles with neighbors, while keeping the isolated particles. We prove that the thinned measure has a Gibbsian representation and provide control on its quasilocal dependence, both in the regime of small , but also in the regime of large , where the thinning transformation changes the Bernoulli measure drastically. Our methods rely on Dobrushin uniqueness criteria, disagreement percolation arguments, and cluster expansions.
Cite
@article{arxiv.2201.02651,
title = {Gibbsianness of locally thinned random fields},
author = {Nils Engler and Benedikt Jahnel and Christof Kuelske},
journal= {arXiv preprint arXiv:2201.02651},
year = {2022}
}
Comments
24 pages, 5 figures, 1 table