{ "id": "math/0506558", "version": "v1", "published": "2005-06-28T03:35:53.000Z", "updated": "2005-06-28T03:35:53.000Z", "title": "The girth of a Heegaard splitting", "authors": [ "Christopher Jerdonek" ], "comment": "Ph.D. dissertation, 73 pages, 22 figures (bitmapped EPS, as the arXiv cannot yet accept the vector-based PDF source)", "categories": [ "math.GT" ], "abstract": "We construct simple curves from immersed curves in the setting of handlebodies and Heegaard splittings. We define a measure of complexity we call girth for closed curves in a handlebody. We extend this complexity to Heegaard splittings and pose a conjecture about all Heegaard splittings. We prove a test case of this conjecture. Let S be a compact surface embedded in the boundary of a handlebody H. Then the minimum girth over all curves in S can be achieved by a simple closed curve. We also present algorithms to compute the girth of curves and surfaces.", "revisions": [ { "version": "v1", "updated": "2005-06-28T03:35:53.000Z" } ], "analyses": { "subjects": [ "57N10", "57M50" ], "keywords": [ "heegaard splitting", "construct simple curves", "handlebody", "complexity", "conjecture" ], "tags": [ "dissertation" ], "note": { "typesetting": "TeX", "pages": 73, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2005math......6558J" } } }