{ "id": "1209.4525", "version": "v1", "published": "2012-09-20T13:25:15.000Z", "updated": "2012-09-20T13:25:15.000Z", "title": "A note on scalar curvature and the convexity of boundaries", "authors": [ "Martin Reiris" ], "categories": [ "math.DG" ], "abstract": "We prove that any smooth Riemannian manifold of non-negative scalar curvature and with a strictly mean convex and compact boundary component can be (C^2) extended beyond the component to have non-negative scalar curvature and to enjoy anyone of the following three types of (new) boundary: strictly convex, totally geodesic or strictly concave. The extension procedure can be applied for instance to \"positive mass\" type of theorems.", "revisions": [ { "version": "v1", "updated": "2012-09-20T13:25:15.000Z" } ], "analyses": { "keywords": [ "non-negative scalar curvature", "smooth riemannian manifold", "compact boundary component", "strictly mean convex", "extension procedure" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2012arXiv1209.4525R" } } }