Arnold's seminar, Moscow University
November 15, 2005

Jacques-Olivier Moussafir 
"Using some results from the theory of
dynamical systems for industrial mixing"

There are some industries, such as
microfluidics, polymer industry or glass manufacturing,
that involve some mixing operation. Many ideas directly borrowed
from the study of dynamical systems help making efficient mixers.
We'll present a short survey of them and insist on the problem
of mixing in a canal. We'll explain for instance how braids
can be used, how to define a mixing measurements, how to effectively
compute them and finally how Thurston's classification of surface
diffeomorphisms helps.
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http://www.pdmi.ras.ru/~arnsem