University of Toronto Fields Analysis Working Group Thursday 8 March, 11:10-noon Fields Institute SPEAKER: Alan Michael Hammond TITLE: Moment bounds and mass-conservation in PDE modelling coaslescence ABSTRACT: We examine the behaviour of solutions to a system of PDE (the Smoluchowski PDE), that model the aggregation of mass-bearing particles that diffuse and are prone to coagulate in pairs at close range. Conditions under which these solutions conserve mass for all time will be presented, along with stronger estimates, moment bounds that show that heavy particles are rare. Uniqueness of solutions also follows from the moment bounds. This is joint work with Fraydoun Rezakhanlou. ------------------------------------------------------------------ University of Toronto PDE/Applied Math/Analysis Seminar http://www.math.toronto.edu/appmath/ 2006-2007 organizers: Pieter Blue pblue@ math.toronto.edu Almut Burchard almut@ math.toronto.edu Robert McCann mccann@ math.toronto.edu ------------------------------------------------------------------