{ "id": "2009.01050", "version": "v1", "published": "2020-09-02T13:24:57.000Z", "updated": "2020-09-02T13:24:57.000Z", "title": "The strong $L^p$-closure of vector fields with finitely many integer singularities on $B^3$", "authors": [ "Riccardo Caniato" ], "categories": [ "math.FA", "math.AP", "math.DG" ], "abstract": "This paper is aimed to investigate the strong $L^p$-closure $L_{\\mathbb{Z}}^p(B)$ of the vector fields on the open unit ball $B\\subset\\mathbb{R}^3$ that are smooth up to finitely many integer point singularities. First, such strong closure is characterized for arbitrary $p\\in[1,+\\infty)$. Secondly, it is shown what happens if the integrability order $p$ is large enough (namely, if $p\\ge 3/2$). Eventually, a decomposition theorem for elements in $L_{\\mathbb{Z}}^1(B)$ is given, conveying information about the possibility of connecting the singular set of such vector fields by an integer $1$-current on $B$ with finite mass.", "revisions": [ { "version": "v1", "updated": "2020-09-02T13:24:57.000Z" } ], "analyses": { "keywords": [ "vector fields", "integer singularities", "open unit ball", "integer point singularities", "strong closure" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }