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The kinetic limit of a system of coagulating planar Brownian particles

Alan Hammond, Fraydoun Rezakhanlou

math.PRarXiv:math/0507522

Abstract

We study a model of mass-bearing coagulating planar Brownian particles. Coagulation is prone to occur when two particles become within a distance of order ε. We assume that the initial number of particles is of the order of $| ε|. Under suitable assumptions on the initial distribution of particles and the microscopic coagulation propensities, we show that the macroscopic particle densities satisfy a Smoluchowski-type equation.

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