{ "id": "1705.04208", "version": "v1", "published": "2017-05-11T14:31:01.000Z", "updated": "2017-05-11T14:31:01.000Z", "title": "Geometric Graph Manifolds with non-negative scalar curvature", "authors": [ "Luis Florit", "Wolfgang Ziller" ], "comment": "16 pages, 2 figures", "categories": [ "math.DG" ], "abstract": "We classify $n$-dimensional geometric graph manifolds with nonnegative scalar curvature, and first show that if $n>3$, the universal cover splits off a codimension 3 Euclidean factor. We then proceed with the classification of the 3-dimensional case by showing that such a manifold is either a lens space or a prism manifold with a very rigid metric. This allows us to also classify the moduli space of such metrics: it has infinitely many connected components for lens spaces, while it is connected for prism manifolds.", "revisions": [ { "version": "v1", "updated": "2017-05-11T14:31:01.000Z" } ], "analyses": { "subjects": [ "53C15", "53C20", "53C24" ], "keywords": [ "non-negative scalar curvature", "lens space", "dimensional geometric graph manifolds", "prism manifold", "universal cover splits" ], "note": { "typesetting": "TeX", "pages": 16, "language": "en", "license": "arXiv", "status": "editable" } } }