On exponential moments of the homogeneous Boltzmann equation for hard potentials without cutoff - Archive ouverte HAL
Article Dans Une Revue Communications in Mathematical Physics Année : 2021

On exponential moments of the homogeneous Boltzmann equation for hard potentials without cutoff

Résumé

We consider the spatially homogeneous Boltzmann equation for hard potentials without cutoff. We prove that an exponential moment of order $\rho=\min\{2\gamma/(2-\nu),2\}$, with the usual notation, is immediately created. This is stronger than what happens in the case with cutoff. We also show that exponential moments of order $\rho\in (0,2]$ are propagated.

Dates et versions

hal-03180481 , version 1 (25-03-2021)

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Citer

Nicolas Fournier. On exponential moments of the homogeneous Boltzmann equation for hard potentials without cutoff. Communications in Mathematical Physics, 2021, ⟨10.1007/s00220-021-04205-9⟩. ⟨hal-03180481⟩
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