Event Series
Event Type
Seminar
Wednesday, June 3, 2020 12:00 PM
Michele Coti-Zelati (Imperiall College, London)

We provide examples of initial data which saturate the enhanced diffusion rates proved for general shear flows which are Hölder regular or Lipschitz continuous with critical points, and for regular circular flows, establishing the sharpness of those results. The proof makes use of a probabilistic interpretation of the dissipation of solutions to advection diffusion equations.