{ "id": "1201.4723", "version": "v2", "published": "2012-01-23T14:16:03.000Z", "updated": "2013-12-05T10:57:37.000Z", "title": "On the classification of easy quantum groups", "authors": [ "Moritz Weber" ], "comment": "39 pages; appeared in Advances in Mathematics, Vol. 245, pages 500-533, 2013", "categories": [ "math.OA", "math.QA" ], "abstract": "In 2009, Banica and Speicher began to study the compact quantum subgroups of the free orthogonal quantum group containing the symmetric group S_n. They focused on those whose intertwiner spaces are induced by some partitions. These so-called easy quantum groups have a deep connection to combinatorics. We continue their work on classifying these objects introducing some new examples of easy quantum groups. In particular, we show that the six easy groups O_n, S_n, H_n, B_n, S_n' and B_n' split into seven cases on the side of free easy quantum groups. Also, we give a complete classification in the half-liberated case.", "revisions": [ { "version": "v2", "updated": "2013-12-05T10:57:37.000Z" } ], "analyses": { "subjects": [ "46L65", "46L54", "17B37", "16T30", "05E10", "20G42" ], "keywords": [ "compact quantum subgroups", "free orthogonal quantum group containing", "symmetric group", "complete classification", "seven cases" ], "note": { "typesetting": "TeX", "pages": 39, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2012arXiv1201.4723W" } } }