Edoardo Mainini – GRADIENT FLOW OF INTERACTION ENERGIES Carte non disponible Date/heure Date(s) - 6 mars 2012 Catégories Pas de Catégories We consider interaction models of the form ?t? = div((?W ??)?) in (0+?)×R^n. Here, ? represents a particle density, W : R^n ? R is a potential representing their pairwise interaction. We discuss well-posedness, asymptotic properties and possible blow up in finite time, in the framework of gradient flows in probability spaces equipped with the optimal transport distance. We consider general ?-convex potentials. We also give some remarksabout the case of the newtonian potential W (x) = ? (1/2pi) log |x| in dimension 2.