{ "id": "math/0208011", "version": "v1", "published": "2002-08-02T08:02:59.000Z", "updated": "2002-08-02T08:02:59.000Z", "title": "Remarks on a conjecture of Gromov and Lawson", "authors": [ "William Dwyer", "Thomas Schick", "Stephan Stolz" ], "comment": "LaTeX2e, 14 pagers", "journal": "High-dimensional manifold topology, Proceedings of the school held in Trieste, May 21--June 8, 2001. Edited by F. T. Farrell and W. L\\~A1/4ck. 159--176, World Sci. Publ., River Edge, NJ, 2003.", "categories": [ "math.GT", "math.AT", "math.DG", "math.KT" ], "abstract": "Gromov and Lawson conjectured that a closed spin manifold M of dimension n with fundamental group pi admits a metric with positive scalar curvature if and only if an associated element in KO_n(B pi) vanishes. In this note we present counter examples to the `if' part of this conjecture for groups pi which are torsion free and whose classifying space is a manifold with negative curvature (in the Alexandrov sense).", "revisions": [ { "version": "v1", "updated": "2002-08-02T08:02:59.000Z" } ], "analyses": { "subjects": [ "53C21" ], "keywords": [ "conjecture", "fundamental group pi admits", "groups pi", "counter examples", "positive scalar curvature" ], "tags": [ "journal article" ], "note": { "typesetting": "LaTeX", "pages": 14, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2002math......8011D" } } }