{ "id": "1910.00712", "version": "v1", "published": "2019-10-01T23:27:05.000Z", "updated": "2019-10-01T23:27:05.000Z", "title": "Homomorphisms between braid groups", "authors": [ "Lei Chen", "Kevin Kordek", "Dan Margalit" ], "comment": "33 pages, 3 figures", "categories": [ "math.GT" ], "abstract": "We give a complete classification of homomorphisms from the braid group on $n$ strands to the braid group on $2n$ strands when $n$ is at least 5. We also classify endomorphisms of the braid group on 4 stands. Our classifications suggest a recursive classification of homomorphisms between any braid groups. We also give a simple, geometric proof of a theorem of Lin that highly constrains the holomorphic maps that may exist between spaces of monic, square-free polynomials of a given degree.", "revisions": [ { "version": "v1", "updated": "2019-10-01T23:27:05.000Z" } ], "analyses": { "keywords": [ "braid group", "homomorphisms", "square-free polynomials", "complete classification", "holomorphic maps" ], "note": { "typesetting": "TeX", "pages": 33, "language": "en", "license": "arXiv", "status": "editable" } } }