{ "id": "1712.04545", "version": "v1", "published": "2017-12-12T21:49:12.000Z", "updated": "2017-12-12T21:49:12.000Z", "title": "Macroscopic stability and simplicial norms of hypersurfaces", "authors": [ "Hannah Alpert" ], "comment": "9 pages", "categories": [ "math.DG", "math.GT" ], "abstract": "We introduce a $\\mathbb{Z}$--coefficient version of Guth's macroscopic stability inequality for almost-minimizing hypersurfaces. In manifolds with a lower bound on macroscopic scalar curvature, we use the inequality to prove a lower bound on areas of hypersurfaces in terms of the Gromov simplicial norm of their homology classes. We give examples to show that a very positive lower bound on macroscopic scalar curvature does not necessarily imply an upper bound on the areas of minimizing hypersurfaces.", "revisions": [ { "version": "v1", "updated": "2017-12-12T21:49:12.000Z" } ], "analyses": { "subjects": [ "53C23", "53A10" ], "keywords": [ "hypersurfaces", "macroscopic scalar curvature", "lower bound", "guths macroscopic stability inequality", "gromov simplicial norm" ], "note": { "typesetting": "TeX", "pages": 9, "language": "en", "license": "arXiv", "status": "editable" } } }