SISSA Mathematics Colloquia - 12 March

[Emanuele Tuillier Illingworth]

*SISSA Mathematics Colloquia*

*
*
*Monday the 12th of March  2018, 4.00pm,  rm 128

*
Speaker: Carlangelo Liverani, Universita’ di Roma Tor Vergata

Title: Beyond averaging
Abstract: Averaging theory allows to effectively describe the motion of 
a system with fast and slow components for a moderately long time. Yet, 
in applications it is often necessary to have information on the 
behaviour of the system for times much longer than the time for which 
averaging holds true. It is then natural to try to explore what happens 
for longer times. I will discuss some results pertaining the case in 
which the fast degrees of freedom perform a chaotic motion and will 
emphasise the similarities with the case in which the fast variables are 
described by a random process.