{ "id": "1403.1153", "version": "v2", "published": "2014-03-05T15:11:25.000Z", "updated": "2014-09-10T19:44:54.000Z", "title": "On the slice genus and some concordance invariants of links", "authors": [ "Alberto Cavallo" ], "categories": [ "math.GT" ], "abstract": "We introduce a new class of links for which we give a lower bound for the slice genus $g_*$, using the generalized Rasmussen invariant. We show that this bound, in some cases, allows one to compute $g_*$ exactly; in particular, we compute $g_*$ for torus links. We also study another link invariant: the strong slice genus $g_*^*$. Studying the behaviour of a specific type of cobordisms in Lee homology, a lower bound for $g_*^*$ is also given.", "revisions": [ { "version": "v1", "updated": "2014-03-05T15:11:25.000Z", "abstract": "We introduce a new class of links for which we give a good lower bound for the slice genus $g_*$, using the generalized Rasmussen invariant. We also show that this bound, in some cases, allows us to compute $g_*$ exactly. We also study another link invariant: the strong slice genus $g_*^*$. Studying the behaviour of component-preserving cobordisms in Lee homology, a lower bound for $g_*^*$ is also given.", "comment": null, "journal": null, "doi": null }, { "version": "v2", "updated": "2014-09-10T19:44:54.000Z" } ], "analyses": { "keywords": [ "concordance invariants", "lower bound", "strong slice genus", "generalized rasmussen invariant", "link invariant" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2014arXiv1403.1153C" } } }