{ "id": "2010.13162", "version": "v1", "published": "2020-10-25T17:01:06.000Z", "updated": "2020-10-25T17:01:06.000Z", "title": "4-dimensional aspects of tight contact 3-manifolds", "authors": [ "Matthew Hedden", "Katherine Raoux" ], "comment": "14 pages, 1 figure", "categories": [ "math.GT", "math.SG" ], "abstract": "In this article we conjecture a 4-dimensional characterization of tightness: a contact structure is tight if and only if a slice-Bennequin inequality holds for smoothly embedded surfaces in Yx[0,1]. An affirmative answer to our conjecture would imply an analogue of the Milnor conjecture for torus knots: if a fibered link L induces a tight contact structure on Y then its fiber surface maximize Euler characteristic amongst all surfaces in Yx[0,1] with boundary L. We provide evidence for both conjectures by proving them for contact structures with non-vanishing Ozsv\\'ath-Szab\\'o contact invariant. We also show that any subsurface of a page of an open book inducing a contact structure with non-trivial invariant maximize \"slice\" Euler-characteristic for its boundary, and conjecture that this holds more generally for open books inducing tight contact structures.", "revisions": [ { "version": "v1", "updated": "2020-10-25T17:01:06.000Z" } ], "analyses": { "subjects": [ "57K18", "57K10", "57K41", "57K31", "57R58", "57R65", "57K33", "53D10", "53D40", "57K33", "57K40", "57K43" ], "keywords": [ "conjecture", "open books inducing tight contact", "books inducing tight contact structures", "fiber surface maximize euler characteristic", "non-vanishing ozsvath-szabo contact invariant" ], "note": { "typesetting": "TeX", "pages": 14, "language": "en", "license": "arXiv", "status": "editable" } } }