Spatially homogeneous Maxwellian molecules in a neighborhood of the   equilibrium
  This note deals with the long-time behavior of the solution to the spatially homogeneous Boltzmann equation for Maxwellian molecules, when the initial datum belongs to a suitable neighborhood of the Maxwellian equilibrium. In particulary, it contains a quantification of the rate of exponential convergence, obtained by simple arguments. 
Emanuele Dolera
math-ph math.MP