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SEMINARI DI EQUAZIONI DIFFERENZIALI E APPLICAZIONI
Mercoledì 20 marzo 2013 alle ore 12:15 in aula 1BC45, Luca Rossi (Università di Padova) terrà un seminario dal titolo "The influence of a line with fast diffusion on Fisher-KPP propagation".
We propose a new system to describe the effect of a "road" with fast diffusion on biological invasions. Outside of the road a classical Fisher-KPP propagation takes place. It is found that the presence of the road enhances the global propagation if the ratio of the diffusivities on and outside the road is larger than an explicit threshold. The cases where transport and mortality take place on the road are further discussed. This is a joint work with H. Berestycki and J.M. Roquejoffre.
Rif. Int. M. Bardi, C. Marchi, P. Mannucci.