Anisotropic Dispersion in Inviscid Geophysical Flows

18.06.2021 14:50 - 15:35

Klaus Widmayer (EPFL)

 

Abstract: Dispersive effects in fluids have been observed and described extensively in the geophysical fluids literature. While dispersion is typically easily identified in associated linear models and for individual frequencies, it is a subtle effect overall and leaves the energy balances unaffected. In addition, in the geophysical setting one encounters anisotropies, which further reduce available conservation laws and symmetries.

Despite this, in certain settings one can show that even anisotropic, relatively weak dispersive effects can exert a strong, stabilizing influence. Such results rely on a fine analysis of the nonlinear interactions.

In this talk I will give an introduction, overview and some perspectives of my work in this context.

https://univienna.zoom.us/j/95784787940?pwd=R2k3TTJyR09EakNyU21GNlNyZ1dGdz09

Organiser:
Fakultät für Mathematik, Dekan R. I. Bot
Location:
Zoom Meeting