LOCATION: BCAM Seminar Room and Online

Abstract
The goal of this talk is to study the inviscid limit of a family of solutions of the 2D Navier-Stokes equations towards a renormalized/Lagrangian solution of the Euler equations. First I will prove the uniform-in-time L^p convergence in the setting of unbounded vorticities. Then I will show that it is also possible to obtain a rate in the class of solutions with bounded vorticity. The proofs are based on the stochastic Lagrangian formulation of the incompressible Navier-Stokes equations. In particular, the results are achieved by studying the zero-noise limit from stochastic towards deterministic flows of irregular vector fields. Finally, I will show that solutions of the Euler equations with L^p vorticity, obtained in the vanishing viscosity limit, conserve the kinetic energy.

This is joint work with G. Crippa (Universität Basel) and S. Spirito (Università degli Studi dell’Aquila).


Link to the session:
https://us06web.zoom.us/j/99649860282?pwd=SE0vemtYMFlwbFBNTXQyOTBONG0vZz09

More info at https://sites.google.com/view/apdebilbao/home