Propagation of Gevrey regularity for solutions of the Boltzmann equation for Maxwellian molecules
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We prove that Gevrey regularity is propagated by the Boltzmann equation with Maxwellian molecules, with or without angular cut-off. The proof relies on the Wild expansion of the solution to the equation and on the characterization of Gevrey regularity by the Fourier transform.
18 pages
18 pages