scispace - formally typeset
Open AccessJournal ArticleDOI

Invariant percolation and harmonic dirichlet functions

Reads0
Chats0
TLDR
In this paper, the existence of the non-uniqueness phase for the Bernoulli percolation on unimodular transitive locally finite graphs admitting nonconstant harmonic Dirichlet functions was shown.
Abstract
The main goal of this paper is to answer question~1.10 and settle conjecture~1.11 of Benjamini-Lyons-Schramm \cite{BLS99} relating harmonic Dirichlet functions on a graph to those of the infinite clusters in the uniqueness phase of Bernoulli percolation. We extend the result to more general invariant percolations, including the Random-Cluster model. We prove the existence of the nonuniqueness phase for the Bernoulli percolation (and make some progress for Random-Cluster model) on unimodular transitive locally finite graphs admitting nonconstant harmonic Dirichlet functions. This is done by using the device of $\ell^2$ Betti numbers.

read more

Citations
More filters
Journal ArticleDOI

A measurable-group-theoretic solution to von Neumann’s problem

TL;DR: In this article, the authors give a positive answer to von Neumann's problem of knowing whether a non-amenable countable discrete group contains a noncyclic free subgroup.
Journal ArticleDOI

Ergodic theory on stationary random graphs

TL;DR: In this paper, the authors adapt the entropy technique developed for Cayley graphs and show that stationary random graphs of subexponential growth are almost surely Liouville, that is, admit no non constant bounded harmonic functions.
Journal ArticleDOI

Minimal spanning forests

TL;DR: In this paper, it was shown that for Cayley graphs, the expected degree of the WMSF is at least the expected degrees of the free minimal spanning forest (FMSF) in Bernoulli percolation.
Journal ArticleDOI

Note on limits of finite graphs

TL;DR: It is proved that for any weakly convergent sequence of finite graphs with bounded vertex degrees, there exists a topological limit graphing.
Journal ArticleDOI

RANDOM COMPLEXES AND ℓ2-BETTI NUMBERS

TL;DR: In this article, the basic elements of a higher-dimensional analogue on finite and infinite CW-complexes were presented, which relate to the higher l 2-Betti numbers of the Cayley graph.
References
More filters
Book

Classical descriptive set theory

TL;DR: In this article, the authors present a largely balanced approach, which combines many elements of the different traditions of the subject, and includes a wide variety of examples, exercises, and applications, in order to illustrate the general concepts and results of the theory.
Journal ArticleDOI

On the random-cluster model: I. Introduction and relation to other models

TL;DR: It is shown that the function which for the random-cluster model plays the role of a partition function, is a generalization of the dichromatic polynomial earlier introduced by Tutte, and related polynomials.
Journal ArticleDOI

Density and uniqueness in percolation

TL;DR: In this paper, two results on site percolation on the d-dimensional lattice, d≧1 arbitrary, are presented, and they extend to a broad class of finite-dimensional models.