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math.GR2023
The growth of the Green function for random walks and Poincar{é} series
Matthieu Dussaule, Wenyuan Yang, Longmin Wang
Given a probability measure on a finitely generated group , the Green function encodes many properties of the random walk associated with . Finding asymptotics…
math.GR2023
Ratio-limit boundaries for random walks on relatively hyperbolic groups
Adam Dor-On, Matthieu Dussaule, Ilya Gekhtman
We study boundaries arising from limits of ratios of transition probabilities for random walks on relatively hyperbolic groups. We extend, as well as determine significant limitati…