5th session, March 25th 2014
Tuesday 25 (Centre IISMM, 96 boulevard Raspail, 1er étage)
9h30 - 10h : Coffee
10h - 10h40 : Weiwei Ding (Aix-Marseille)
10h50 - 11h30 : Antoine Pauthier (Toulouse)
The influence of a line with fast diffusion on Fisher-KPP propagation : integral models
A new model to describe biological invasion influenced by a line with fast diffusion has been introduced two years ago by H. Berestycki, JM Roquejoffre and L. Rossi.The purpose of this talk is to present a related model where the line of fast diffusion has a nontrivial range of influence, i.e. the exchanges between the line and the surrounding space has a nontrivial support. We show the existence of a spreading velocity, and investigate the singular limit when the support of the exchanges shrinks to the line. An intermediate model is also discussed.
11h40 - 12h20 : Hoang Hung Vo (Paris)
15h - 16h : Jose A. Scheinkman (Edwin W. Rickert Professor of Economics at Columbia University)
Salle 11, 105 bd Raspail.
CAMS seminar, see here
Salle 11, 105 bd Raspail.
CAMS seminar, see here