{ "id": "1712.09263", "version": "v1", "published": "2017-12-26T13:11:54.000Z", "updated": "2017-12-26T13:11:54.000Z", "title": "The irreducible characters of the Sylow $p$-subgroups of the Chevalley groups $\\mathrm{D}_6(p^f)$ and $\\mathrm{E}_6(p^f)$", "authors": [ "Tung Le", "Kay Magaard", "Alessandro Paolini" ], "comment": "32 pages", "categories": [ "math.RT", "math.GR" ], "abstract": "We parametrize the set of irreducible characters of the Sylow $p$-subgroups of the Chevalley groups $\\mathrm{D}_6(q)$ and $\\mathrm{E}_6(q)$, for an arbitrary power $q$ of any prime $p$. In particular, we establish that the parametrization is uniform for $p \\ge 3$ in type $\\mathrm{D}_6$ and for $p \\ge 5$ in type $\\mathrm{E}_6$, while the prime $2$ in type $\\mathrm{D}_6$ and the primes $2,$ $3$ in type $\\mathrm{E}_6$ yield character degrees of the form $q^m/p^i$ which force a departure from the generic situations. Also for the first time in our analysis we see a family of irreducible characters of a classical group of degree $q^m/p^i$ where $i > 1$ which occurs in type $\\mathrm{D}_6$.", "revisions": [ { "version": "v1", "updated": "2017-12-26T13:11:54.000Z" } ], "analyses": { "subjects": [ "20C33", "20C15" ], "keywords": [ "irreducible characters", "chevalley groups", "yield character degrees", "arbitrary power", "generic situations" ], "note": { "typesetting": "TeX", "pages": 32, "language": "en", "license": "arXiv", "status": "editable" } } }