Seminars

A list of past seminars is avalaible here

List of upcoming seminars

Our seminars are scheduled on Monday, at 5.30 pm (Italian time), unless specified. For the list of upcoming seminars, expand the menu ticking on the arrow. 



Title:  "Reducing stochastic models in Climate, fluctuating Hydrodynamics and turbulent transport ",  


The seminar will be held at the at  Sala seminari del blocco zero (DISIM, UnivAq).  

 and will also be streamed through Zoom at the link: 

https://gssi-it.zoom.us/j/87571297606?pwd=kP2blVizaMrebCFuueRcnRsMpAJ5sA.1 

ID riunione: 875 7129 7606

Passcode: SMAQ2425   



"Reducing stochastic models in Climate, fluctuating Hydrodynamics and turbulent transport ",   


   

Date: October 21th, 2024 Monday  at 14:30 (Italian time)


onsite:   at  Sala seminari del blocco zero (DISIM, UnivAq).   (green building in this map

zoom: https://gssi-it.zoom.us/j/87571297606pwd=kP2blVizaMrebCFuueRcnRsMpAJ5sA.1 

ID riunione: 875 7129 7606


Passcode: SMAQ2425


Abstract

Many systems, taking the scaling limit in a parameter, converge to a deterministic limit equation. Examples are fast-slow system in climate and their limit averaging equation; interacting particle systems and their mean field or hydrodynamic limit; stochastic turbulent transport and their diffusive limit, similar to diffusion limit in homogenization. One could however stop before taking the limit and look for a simplified stochastic model, similar to the limit model but stochastic, which well represents the approximating problem without completely neglecting the fluctuations. This was the viewpoint in particular of Hasselmann proposal in climate modeling, here reviewed in comparison with Dean-Kawasaki approach to fluctuating hydrodynamics, with a detour on stochastic transport.