{ "id": "math/0311496", "version": "v3", "published": "2003-11-27T03:10:30.000Z", "updated": "2004-03-03T17:55:28.000Z", "title": "Holomorphic disks and genus bounds", "authors": [ "Peter Ozsvath", "Zoltan Szabo" ], "comment": "Published by Geometry and Topology at http://www.maths.warwick.ac.uk/gt/GTVol8/paper8.abs.html", "journal": "Geom. Topol. 8(2004) 311-334", "categories": [ "math.GT", "math.SG" ], "abstract": "We prove that, like the Seiberg-Witten monopole homology, the Heegaard Floer homology for a three-manifold determines its Thurston norm. As a consequence, we show that knot Floer homology detects the genus of a knot. This leads to new proofs of certain results previously obtained using Seiberg-Witten monopole Floer homology (in collaboration with Kronheimer and Mrowka). It also leads to a purely Morse-theoretic interpretation of the genus of a knot. The method of proof shows that the canonical element of Heegaard Floer homology associated to a weakly symplectically fillable contact structure is non-trivial. In particular, for certain three-manifolds, Heegaard Floer homology gives obstructions to the existence of taut foliations.", "revisions": [ { "version": "v3", "updated": "2004-03-03T17:55:28.000Z" } ], "analyses": { "subjects": [ "57R58", "53D40", "57M27", "57N10" ], "keywords": [ "heegaard floer homology", "genus bounds", "holomorphic disks", "symplectically fillable contact structure", "seiberg-witten monopole floer homology" ], "tags": [ "journal article" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2003math.....11496O" } } }