{ "id": "hep-th/0409073", "version": "v2", "published": "2004-09-06T23:19:36.000Z", "updated": "2005-08-05T07:20:00.000Z", "title": "On mysteriously missing T-duals, H-flux and the T-duality group", "authors": [ "Varghese Mathai", "Jonathan Rosenberg" ], "comment": "4 pages, latex2e, Mistake in formula corrected, ref. added", "journal": "pages 350-358, in \"Differential Geometry and Physics\", editors Mo-Lin Ge and Weiping Zhang, Nankai Tracts in Mathematics, Volume 10, World Scientific 2006", "categories": [ "hep-th" ], "abstract": "A general formula for the topology and H-flux of the T-duals of type II string theories with H-flux on toroidal compactifications is presented here. It is known that toroidal compactifications with H-flux do not necessarily have T-duals which are themselves toroidal compactifications. A big puzzle has been to explain these mysterious ``missing T-duals'', and our paper presents a solution to this problem using noncommutative topology. We also analyze the T-duality group and its action, and illustrate these concepts with examples.", "revisions": [ { "version": "v2", "updated": "2005-08-05T07:20:00.000Z" } ], "analyses": { "keywords": [ "t-duality group", "mysteriously missing t-duals", "toroidal compactifications", "general formula", "big puzzle" ], "tags": [ "journal article" ], "note": { "typesetting": "LaTeX", "pages": 4, "language": "en", "license": "arXiv", "status": "editable", "inspire": 658552, "adsabs": "2004hep.th....9073M" } } }