Martin Klötzer

collaborators

2 papers

math.PR2026

Phase transition for the asymptotic entropy of branching random walks on groups

Jeremie Brieussel, Robin Kaiser, Martin Klötzer +1

We consider supercritical branching random walks (BRW) on countable groups $G$ and we prove that the asymptotic entropy of the empirical distributions of the BRW has a phase transi…

math.PR2026

Maximal and minimal displacement of supercritical branching random walks on free products of groups

Robin Kaiser, Martin Klötzer, Konrad Kolesko +1

We prove that the maximal and minimal displacement of branching random walks with mean offspring number $ρ > 1$ on free products of finite groups grows linearly almost surely. More p…