{ "id": "math/0606383", "version": "v4", "published": "2006-06-15T23:31:53.000Z", "updated": "2009-03-30T20:21:52.000Z", "title": "Degeneration of Heegaard genus, a survey", "authors": [ "David Bachman", "Ryan Derby-Talbot" ], "comment": "This is the version published by Geometry & Topology Monographs on 3 December 2007", "journal": "Geom. Topol. Monogr. 12 (2007) 1-15", "doi": "10.2140/gtm.2007.12.1", "categories": [ "math.GT" ], "abstract": "We survey known (and unknown) results about the behavior of Heegaard genus of 3-manifolds constructed via various gluings. The constructions we consider are (1) gluing together two 3-manifolds with incompressible boundary, (2) gluing together the boundary components of surface times I, and (3) gluing a handlebody to the boundary of a 3-manifold. We detail those cases in which it is known when the Heegaard genus is less than what is expected after gluing.", "revisions": [ { "version": "v4", "updated": "2009-03-30T20:21:52.000Z" } ], "analyses": { "subjects": [ "57M99", "57N10", "57M27" ], "keywords": [ "heegaard genus", "degeneration", "boundary components", "surface times" ], "tags": [ "journal article" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2006math......6383B" } } }