{ "id": "2102.05940", "version": "v1", "published": "2021-02-11T10:58:20.000Z", "updated": "2021-02-11T10:58:20.000Z", "title": "Limits of manifolds with a Kato bound on the Ricci curvature", "authors": [ "Gilles Carron", "Ilaria Mondello", "David Tewodrose" ], "categories": [ "math.DG" ], "abstract": "We study the structure of Gromov-Hausdorff limits of sequences of Riemannian manifolds $\\{(M_\\alpha^n,g_\\alpha)\\}_{\\alpha \\in A}$ whose Ricci curvature satisfies a uniform Kato bound. We first obtain Mosco convergence of the Dirichlet energies to the Cheeger energy and show that tangent cones of such limits satisfy the $\\mathrm{RCD}(0,n)$ condition. When assuming a non-collapsing assumption, we introduce a new family of monotone quantities, which allows us to prove that tangent cones are also metric cones. We then show the existence of a well-defined stratification in terms of splittings of tangent cones. We finally prove volume convergence to the Hausdorff $n$-measure.", "revisions": [ { "version": "v1", "updated": "2021-02-11T10:58:20.000Z" } ], "analyses": { "keywords": [ "tangent cones", "ricci curvature satisfies", "uniform kato bound", "limits satisfy", "riemannian manifolds" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }