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A Convexity Property of Discrete Random Walks
Published online by Cambridge University Press: 31 March 2016
Abstract
We establish a convexity property for the hitting probabilities of discrete random walks in ${\mathbb Z}^d$ (discrete harmonic measures). For d = 2 this implies a recent result on the convexity of the density of certain harmonic measures.
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- Copyright © Cambridge University Press 2016