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Averaging lemmas without time Fourier transform and application to discretized kinetic equations. (English) Zbl 0933.35159

The authors present modified proofs of averaging lemmas for kinetic equations. These proofs are based on Fourier transforms with respect to \(x\) and \(v\), but not \(t\). The method is then used to prove estimates on time averages of discrete (in time) approximations of kinetic equations.

MSC:

35Q35 PDEs in connection with fluid mechanics
82C40 Kinetic theory of gases in time-dependent statistical mechanics
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