Abstract
Proof is given of the existence of a classical solution to the nonlinear Boltzmann equation in allR 3. The solution, which is global in time, exists if the initial data go to zero fast enough at infinity and the mean free path is sufficiently large. The solution is smooth in the space variable if the initial value is smooth. The asymptotic behavior of solutions is also given. It is shown that ast→∞ the solution to the Boltzmann equation can be approximated by the solution to the free motion problem.
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Polewczak, J. Classical solution of the nonlinear Boltzmann equation in allR 3: Asymptotic behavior of solutions. J Stat Phys 50, 611–632 (1988). https://doi.org/10.1007/BF01026493
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DOI: https://doi.org/10.1007/BF01026493