{ "id": "1507.08397", "version": "v1", "published": "2015-07-30T06:48:45.000Z", "updated": "2015-07-30T06:48:45.000Z", "title": "Finite time collapsing of the Kähler-Ricci flow on threefolds", "authors": [ "Valentino Tosatti", "Yuguang Zhang" ], "comment": "14 pages", "categories": [ "math.DG", "math.CV" ], "abstract": "We show that if on a compact Kahler threefold there is a solution of the Kahler-Ricci flow which encounters a finite time collapsing singularity, then the manifold admits a Fano fibration. Furthermore, if there is finite time extinction then the manifold is Fano and the initial class is a positive multiple of the first Chern class.", "revisions": [ { "version": "v1", "updated": "2015-07-30T06:48:45.000Z" } ], "analyses": { "subjects": [ "53C44", "53C55", "14J45", "32Q15", "58J35", "14E30" ], "keywords": [ "kähler-ricci flow", "compact kahler threefold", "finite time extinction", "finite time collapsing singularity", "first chern class" ], "note": { "typesetting": "TeX", "pages": 14, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2015arXiv150708397T" } } }