{ "id": "1603.06037", "version": "v1", "published": "2016-03-19T03:35:05.000Z", "updated": "2016-03-19T03:35:05.000Z", "title": "Global well-posedness of the Boltzmann equation with large amplitude initial data", "authors": [ "Renjun Duan", "Feimin Huang", "Yong Wang", "Tong Yang" ], "comment": "34 pages", "categories": [ "math.AP" ], "abstract": "The global well-posedness of the Boltzmann equation with initial data of large amplitude has remained a long-standing open problem. In this paper, by developing a new $L^\\infty_xL^1_{v}\\cap L^\\infty_{x,v}$ approach, we prove the global existence and uniqueness of mild solutions to the Boltzmann equation in the whole space or torus for a class of initial data with bounded velocity-weighted $L^\\infty$ norm under some smallness condition on $L^1_xL^\\infty_v$ norm as well as defect mass, energy and entropy so that the initial data allow large amplitude oscillations. Both the hard and soft potentials with angular cut-off are considered, and the large time behavior of solutions in $L^\\infty_{x,v}$ norm with explicit rates of convergence is also studied.", "revisions": [ { "version": "v1", "updated": "2016-03-19T03:35:05.000Z" } ], "analyses": { "keywords": [ "large amplitude initial data", "boltzmann equation", "global well-posedness", "large amplitude oscillations", "large time behavior" ], "note": { "typesetting": "TeX", "pages": 34, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2016arXiv160306037D" } } }