Michael Hofstetter

activity

20242026

collaborators

4 papers

math.PR2026

Mass gap for the hierarchical sinh-Gordon model

Omar Abdelghani, Roland Bauerschmidt, Michael Hofstetter +1

The (massless) sinh-Gordon model is defined in terms of a continuum massless Gaussian free field perturbed by a cosh interaction. For the hierarchical version of the model, we prov…

math.PR2025

A coupling for the Liouville and the sinh-Gordon model in the $L^{2}$ phase

Michael Hofstetter

Using a stochastic control approach we establish couplings of the Liouville field and the sinh-Gordon field with the Gaussian free field in dimension $d = 2$ , such that the differenc…

math.PR2025

The Liouville model in the $L^{1}$ phase: coupling and extreme values

Michael Hofstetter, Ofer Zeitouni

We establish a strong coupling between the Liouville model and the Gaussian free field on the two dimensional torus in the $L^{1}$ phase $β \in (0, 8 π)$ , such that the difference of t…

math.PR2024

Decay of correlations for the massless hierarchical Liouville model in infinite volume

Michael Hofstetter, Ofer Zeitouni

Let $(A_{v})_{v \in T}$ be the balanced Gaussian Branching Random Walk on a $d$ -ary tree $T$ and let $M^{A}$ be the multiplicative chaos with parameter $γ\in (0, \sq…

Mass gap for the hierarchical sinh-Gordon model

A coupling for the Liouville and the sinh-Gordon model in the L2 phase

The Liouville model in the L1 phase: coupling and extreme values

Decay of correlations for the massless hierarchical Liouville model in infinite volume

A coupling for the Liouville and the sinh-Gordon model in the $L^{2}$ phase

The Liouville model in the $L^{1}$ phase: coupling and extreme values