Algorithmic pirogov-sinai theory

T Helmuth, W Perkins, G Regts - Proceedings of the 51st Annual ACM …, 2019 - dl.acm.org
We develop an efficient algorithmic approach for approximate counting and sampling in the
low-temperature regime of a broad class of statistical physics models on finite subsets of the …

[HTML][HTML] Homomorphisms from the torus

M Jenssen, P Keevash - Advances in Mathematics, 2023 - Elsevier
We present a detailed probabilistic and structural analysis of the set of weighted
homomorphisms from the discrete torus Z mn, where m is even, to any fixed graph: we show …

A refined graph container lemma and applications to the hard-core model on bipartite expanders

M Jenssen, A Malekshahian, J Park - arxiv preprint arxiv:2411.03393, 2024 - arxiv.org
We establish a refined version of a graph container lemma due to Galvin and discuss
several applications related to the hard-core model on bipartite expander graphs. Given a …

Counting sum-free sets in Abelian groups

N Alon, J Balogh, R Morris, W Samotij - Israel Journal of mathematics, 2014 - Springer
In this paper we study sum-free sets of order m in finite abelian groups. We prove a general
theorem about independent sets in 3-uniform hypergraphs, which allows us to deduce …

Percolation on hypergraphs and the hard-core model

T Helmuth, W Perkins, M Sarantis - arxiv preprint arxiv:2307.10105, 2023 - arxiv.org
We prove tight bounds on the site percolation threshold for $ k $-uniform hypergraphs of
maximum degree $\Delta $ and for $ k $-uniform hypergraphs of maximum degree $\Delta …

Long-range order in discrete spin systems

R Peled, Y Spinka - arxiv preprint arxiv:2010.03177, 2020 - arxiv.org
We establish long-range order for discrete nearest-neighbor spin systems on $\mathbb {Z}^
d $ satisfying a certain symmetry assumption, when the dimension $ d $ is higher than an …

Finitary codings for spatial mixing Markov random fields

Y Spinka - 2020 - projecteuclid.org
It has been shown by van den Berg and Steif (Ann. Probab. 27 (1999) 1501–1522) that the
subcritical and critical Ising model on Z^d is a finitary factor of an iid process (ffiid), whereas …

Rigidity of proper colorings of

R Peled, Y Spinka - Inventiones mathematicae, 2023 - Springer
A proper q-coloring of a domain in Z d is a function assigning one of q colors to each vertex
of the domain such that adjacent vertices are colored differently. Sampling a proper q …

Rigidity of proper colorings of

R Peled, Y Spinka - arxiv preprint arxiv:1808.03597, 2018 - arxiv.org
A proper $ q $-coloring of a domain in $\mathbb {Z}^ d $ is a function assigning one of $ q $
colors to each vertex of the domain such that adjacent vertices are colored differently …

Tunneling of the hard‐core model on finite triangular lattices

A Zocca - Random Structures & Algorithms, 2019 - Wiley Online Library
We consider the hard‐core model on finite triangular lattices with Metropolis dynamics.
Under suitable conditions on the triangular lattice sizes, this interacting particle system has 3 …