{ "id": "1402.2061", "version": "v1", "published": "2014-02-10T08:09:24.000Z", "updated": "2014-02-10T08:09:24.000Z", "title": "On a time and space discretized approximation of the Boltzmann equation in the whole space", "authors": [ "C. P. Grünfeld", "D. Marinescu" ], "categories": [ "math.NA" ], "abstract": "In this paper, convergence results on the solutions of a time and space discrete model approximation of the Boltzmann equation for a gas of Maxwellian particles in a bounded domain, obtained by Babovsky and Illner [1989], are extended to approximate the solutions of the Boltzmann equation in the whole physical space. This is done for a class of particle interactions including Maxwell and soft cut-off potentials in the sense of Grad. The main result shows that the solutions of the discrete model converge in $\\mathbb{L}^1$ to the solutions of the Boltzmann equation, when the discretization parameters go simultaneously to zero. The convergence is uniform with respect to the discretization parameters. In addition, a sufficient condition for the implementation of the main result is provided.", "revisions": [ { "version": "v1", "updated": "2014-02-10T08:09:24.000Z" } ], "analyses": { "subjects": [ "35A35", "65M12", "76P05" ], "keywords": [ "boltzmann equation", "space discretized approximation", "discretization parameters", "main result", "space discrete model approximation" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2014arXiv1402.2061G" } } }