{ "id": "2403.15809", "version": "v1", "published": "2024-03-23T11:38:49.000Z", "updated": "2024-03-23T11:38:49.000Z", "title": "The Goeritz groups of $(1,1)$-decompositions", "authors": [ "Yuya Koda", "Yuki Tanaka" ], "comment": "16 pages, 13 figures", "categories": [ "math.GT" ], "abstract": "A $(g, n)$-decomposition of a link $L$ in a closed orientable $3$-manifold $M$ is a decomposition of $M$ by a closed orientable surface of genus $g$ into two handebodies each of which intersects the link $L$ in $n$ trivial arcs. The Goeritz group of that decomposition is then defined to be the group of isotopy classes of orientation-preserving homeomorphisms of the pair $(M, L)$ preserving the decomposition. We compute the Goeritz groups of all $(1,1)$-decompositions.", "revisions": [ { "version": "v1", "updated": "2024-03-23T11:38:49.000Z" } ], "analyses": { "subjects": [ "57K20", "57K10" ], "keywords": [ "goeritz group", "decomposition", "trivial arcs", "isotopy classes", "handebodies" ], "note": { "typesetting": "TeX", "pages": 16, "language": "en", "license": "arXiv", "status": "editable" } } }