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math.PR2020
Cutoff on trees is rare
Nina Gantert, Evita Nestoridi, Dominik Schmid
We study the simple random walk on trees and give estimates on the mixing and relaxation time. Relying on a recent characterization by Basu, Hermon and Peres, we give geometric cri…
math.FA2020
Generalized Harmonic Functions on Trees: Universality and Frequent Universality
N. Biehler, E. Nestoridi, V. Nestoridis
Recently, harmonic functions and frequently universal harmonic functions on a tree have been studied, taking values on a separable Fréchet space over the field …