Professor Pierre-Gilles Lemarié-Rieusset visited the department on Friday 26 April for research interaction and to give a Colloquium talk.  He is from the Universite d’Evry Val d’Essonne, in Evry, south of Paris.  His Colloquium talk was on “A comparitive study of the Navier-Stokes equations and the Keller-Segel system“. Professor Lemarie-Rieusset’s web page can be found here.