{ "id": "2112.05105", "version": "v2", "published": "2021-12-09T18:44:04.000Z", "updated": "2023-06-05T11:40:12.000Z", "title": "Sobolev Inequalities and Convergence For Riemannian Metrics and Distance Functions", "authors": [ "Brian Allen", "Edward Bryden" ], "comment": "26 pages, 1 figure. v2: Final published version in AGAG", "journal": "Annals of Global Analysis and Geometry, June 2023", "doi": "10.1007/s10455-023-09906-z", "categories": [ "math.DG", "math.MG" ], "abstract": "If one thinks of a Riemannian metric, $g_1$, analogously as the gradient of the corresponding distance function, $d_1$, with respect to a background Riemannian metric, $g_0$, then a natural question arises as to whether a corresponding theory of Sobolev inequalities exists between the Riemannian metric and its distance function. In this paper we study the sub-critical case $p < \\frac{m}{2}$ and show a Sobolev inequality exists where an $L^{\\frac{p}{2}}$ bound on a Riemannian metric implies an $L^q$ bound on its corresponding distance function. We then use this result to state a convergence theorem and show how this theorem can be useful to prove geometric stability results by proving a version of Gromov's conjecture for tori with almost non-negative scalar curvature in the conformal case. Examples are given to show that the hypotheses of the main theorems are necessary.", "revisions": [ { "version": "v2", "updated": "2023-06-05T11:40:12.000Z" } ], "analyses": { "keywords": [ "sobolev inequality", "corresponding distance function", "convergence", "background riemannian metric", "natural question arises" ], "tags": [ "journal article" ], "publication": { "publisher": "Springer" }, "note": { "typesetting": "TeX", "pages": 26, "language": "en", "license": "arXiv", "status": "editable" } } }