Title: Balls-in-boxes duality for coalescing random walks and coalescing Brownian motion Author: Steven N. Evans and Xiaowen Zhou pub: PDF Url: http://www.stat.berkeley.edu/users/evans/662.pdf Date: June 2004 Abstract: We present a duality between two systems of coalescing random walks and an analogous duality between two systems of coalescing Brownian motions. Our results extend previous work in the literature and we apply them to the study of a system of coalescing Brownian motions with Poisson immigration.