{ "id": "1811.03249", "version": "v1", "published": "2018-11-08T03:39:28.000Z", "updated": "2018-11-08T03:39:28.000Z", "title": "Global Navier-Stokes flows for non-decaying initial data with slowly decaying oscillation", "authors": [ "Hyunju Kwon", "Tai-Peng Tsai" ], "categories": [ "math.AP" ], "abstract": "Consider the Cauchy problem of incompressible Navier-Stokes equations in $\\mathbb{R}^3$ with uniformly locally square integrable initial data. If the square integral of the initial datum on a ball vanishes as the ball goes to infinity, the existence of a time-global weak solution has been known. However, such data do not include constants, and the only known global solutions for non-decaying data are either for perturbations of constants, or when the velocity gradients are in $L^p$ with finite $p$. In this paper, we construct global weak solutions for non-decaying initial data whose local oscillations decay, no matter how slowly.", "revisions": [ { "version": "v1", "updated": "2018-11-08T03:39:28.000Z" } ], "analyses": { "subjects": [ "35Q30", "76D05", "35D30" ], "keywords": [ "initial datum", "non-decaying initial data", "global navier-stokes flows", "slowly decaying oscillation", "square integrable initial data" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }