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SUMMARY:Instantaneous filling of the vacuum for the Boltzmann equation - M
 arc Briant (CCA)
DTSTART:20130522T150000Z
DTEND:20130522T160000Z
UID:TALK44742@talks.cam.ac.uk
CONTACT:Martin Taylor
DESCRIPTION:Imagine a box divided into two compartments thanks to a wall\,
  one compartment being empty and the other one containing gas. What would 
 happen if you take the wall out? A mathematical answer to that is the fact
  that immediately the gas will fill the entire box. In this talk we derive
  this result for the full Boltzmann equation in the torus and $C^2$ bounde
 d domains in general\, and also give an explicit exponential lower bound f
 or the solution. 
LOCATION:MR14\, Centre for Mathematical Sciences
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