{ "id": "2505.03928", "version": "v1", "published": "2025-05-06T19:08:05.000Z", "updated": "2025-05-06T19:08:05.000Z", "title": "Torus decomposition and foliation detected slopes", "authors": [ "Qingfeng Lyu" ], "comment": "17 pages, 4 figures", "categories": [ "math.GT" ], "abstract": "Let $M_1$ and $M_2$ be knot manifolds and $M=M_1\\cup_f M_2$ be the closed 3-manifold obtained by gluing up $M_1$ and $M_2$ via $f:\\partial M_1\\xrightarrow{\\cong} \\partial M_2$. We show that if $M$ admits a co-oriented taut foliation, then $f$ identifies some CTF-detected rational boundary slopes of $M_1$ and $M_2$, affirming a conjecture proposed by Boyer, Gordon and Hu.", "revisions": [ { "version": "v1", "updated": "2025-05-06T19:08:05.000Z" } ], "analyses": { "subjects": [ "57K30", "57R30" ], "keywords": [ "foliation detected slopes", "torus decomposition", "ctf-detected rational boundary slopes", "co-oriented taut foliation", "knot manifolds" ], "note": { "typesetting": "TeX", "pages": 17, "language": "en", "license": "arXiv", "status": "editable" } } }