{ "id": "2210.04730", "version": "v2", "published": "2022-10-10T14:37:53.000Z", "updated": "2022-10-11T06:52:50.000Z", "title": "Weak and strong $L^p$-limits of vector fields with finitely many integer singularities in dimension $n$", "authors": [ "Riccardo Caniato", "Filippo Gaia" ], "comment": "67 pages", "categories": [ "math.FA" ], "abstract": "For every given $p\\in [1,+\\infty)$ and $n\\in\\mathbb{N}$ with $n\\ge 1$, the authors identify the strong $L^p$-closure $L_{\\mathbb{Z}}^p(D)$ of the class of vector fields having finitely many integer topological singularities on a domain $D$ which is either bi-Lipschitz equivalent to the open unit $n$-dimensional cube or to the boundary of the unit $(n+1)$-dimensional cube. Moreover, the authors prove that $L_{\\mathbb{Z}}^p(D)$ is weakly sequentially closed for every $p\\in (1,+\\infty)$ whenever $D$ is an open domain in $\\mathbb{R}^n$ which is bi-Lipschitz equivalent to the open unit cube. As a byproduct of the previous analysis, a useful characterisation of such class of objects is obtained in terms of existence of a (minimal) connection for their singular set.", "revisions": [ { "version": "v2", "updated": "2022-10-11T06:52:50.000Z" } ], "analyses": { "keywords": [ "vector fields", "integer singularities", "dimensional cube", "bi-lipschitz equivalent", "open unit cube" ], "note": { "typesetting": "TeX", "pages": 67, "language": "en", "license": "arXiv", "status": "editable" } } }