Abstract
In the present work, we give the coercivity estimates for the Boltzmann collision operator Q(·, ·) without angular cut-off to clarify in which case the functional \({\langle -Q(g, f), f\rangle}\) will become the truly sub-elliptic. Based on this observation and commutator estimates in Alexandre et al. (Arch Rat Mech Anal 198:39–123, 2010), the upper bound estimates for the collision operator in Chen and He (Arch Rat Mech Anal 201(2):501–548, 2011) and the stability results in Desvillettes and Mouhot (Arch Rat Mech Anal 193(2):227–253, 2009), in the function space \({L^1_q\cap H^N}\) , we establish global well-posedness or local well-posedness for the spatially homogeneous Boltzmann equation with full-range interaction(covering most of physical collision kernels).
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He, L. Well-Posedness of Spatially Homogeneous Boltzmann Equation with Full-Range Interaction. Commun. Math. Phys. 312, 447–476 (2012). https://doi.org/10.1007/s00220-012-1481-4
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DOI: https://doi.org/10.1007/s00220-012-1481-4