{ "id": "1812.11686", "version": "v1", "published": "2018-12-31T03:43:08.000Z", "updated": "2018-12-31T03:43:08.000Z", "title": "Computing closed essential surfaces in 3-manifolds", "authors": [ "Benjamin A. Burton", "Stephan Tillmann" ], "comment": "25 pages, 15 figures; journal version of the conference paper arXiv:1212.1531", "categories": [ "math.GT" ], "abstract": "We present a practical algorithm to test whether a 3-manifold given by a triangulation or an ideal triangulation contains a closed essential surface. This property has important theoretical and algorithmic consequences. As a testament to its practicality, we run the algorithm over a comprehensive body of closed 3-manifolds and knot exteriors, yielding results that were not previously known. The algorithm derives from the original Jaco-Oertel framework, involves both enumeration and optimisation procedures, and combines several techniques from normal surface theory. Our methods are relevant for other difficult computational problems in 3-manifold theory, such as the recognition problem for knots, links and 3-manifolds.", "revisions": [ { "version": "v1", "updated": "2018-12-31T03:43:08.000Z" } ], "analyses": { "subjects": [ "57M25", "57N10" ], "keywords": [ "computing closed essential surfaces", "ideal triangulation contains", "normal surface theory", "original jaco-oertel framework", "knot exteriors" ], "tags": [ "conference paper" ], "note": { "typesetting": "TeX", "pages": 25, "language": "en", "license": "arXiv", "status": "editable" } } }