activity
20122023
most citedAlgorithmic Pirogov-Sinai theory

38 citations · 136 across the 19 of their papers we have counts for

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Showing math.PRShow all

13 papers · 1 filter

math.PR2023

Percolation on hypergraphs and the hard-core model

Tyler Helmuth, Will Perkins, Michail Sarantis

We prove tight bounds on the site percolation threshold for -uniform hypergraphs of maximum degree and for -uniform hypergraphs of maximum degree in which any pair of…

math.PR2023

Directed Spatial Permutations on Asymmetric Tori

Alan Hammond, Tyler Helmuth

We investigate a model of random spatial permutations on two-dimensional tori, and establish that the joint distribution of large cycles is asymptotically given by the Poisson--Dir…

math.PR2021★ 1 cited

Spin systems with hyperbolic symmetry: a survey

Roland Bauerschmidt, Tyler Helmuth

Spin systems with hyperbolic symmetry originated as simplified models for the Anderson metal--insulator transition, and were subsequently found to exactly describe probabilistic mo…

math.PR2021★ 2 cited

Percolation transition for random forests in

Roland Bauerschmidt, Nicholas Crawford, Tyler Helmuth

The arboreal gas is the probability measure on (unrooted spanning) forests of a graph in which each forest is weighted by a factor per edge. It arises as the limit o…

math.PR2020★ 2 cited

Finite-size scaling, phase coexistence, and algorithms for the random cluster model on random graphs

Tyler Helmuth, Matthew Jenssen, Will Perkins

For and large as a function of , we give a detailed picture of the phase transition of the random cluster model on random -regular graphs. In particular, we dete…

math.PR2020★ 5 cited

Loop-erased random walk as a spin system observable

Tyler Helmuth, Assaf Shapira

The determination of the Hausdorff dimension of the scaling limit of loop-erased random walk is closely related to the study of the one-point function of loop-erased random walk, i…

math.PR2020★ 1 cited

Correlation decay for hard spheres via Markov chains

Tyler Helmuth, Will Perkins, Samantha Petti

We improve upon all known lower bounds on the critical fugacity and critical density of the hard sphere model in dimensions two and higher. As the dimension tends to infinity our i…

math.PR2019★ 20 cited

Random spanning forests and hyperbolic symmetry

Roland Bauerschmidt, Nicholas Crawford, Tyler Helmuth +1

We study (unrooted) random forests on a graph where the probability of a forest is multiplicatively weighted by a parameter per edge. This is called the arboreal gas model, a…

math.PR2019★ 1 cited

Efficient sampling and counting algorithms for the Potts model on at all temperatures

Christian Borgs, Jennifer Chayes, Tyler Helmuth +2

For and all we give an efficient algorithm to approximately sample from the -state ferromagnetic Potts and random cluster models on finite tori $(\mat…

math.PR2019★ 2 cited

The continuous-time lace expansion

David C. Brydges, Tyler Helmuth, Mark Holmes

We derive a continuous-time lace expansion for a broad class of self-interacting continuous-time random walks. Our expansion applies when the self-interaction is a sufficiently nic…

math.PR2019★ 5 cited

The geometry of random walk isomorphism theorems

Roland Bauerschmidt, Tyler Helmuth, Andrew Swan

The classical random walk isomorphism theorems relate the local times of a continuous-time random walk to the square of a Gaussian free field. A Gaussian free field is a spin syste…

math.PR2017

Self-attracting self-avoiding walk

Alan Hammond, Tyler Helmuth

This article is concerned with self-avoiding walks (SAW) on that are subject to a self-attraction. The attraction, which rewards instances of adjacent parallel edg…

math.PR2014★ 9 cited

Loop-weighted Walk

Tyler Helmuth

Loop-weighted walk with parameter is a non-Markovian model of random walks that is related to the loop model of statistical mechanics. A walk receives weight $λ^{k…