{ "id": "2303.10713", "version": "v1", "published": "2023-03-19T16:48:05.000Z", "updated": "2023-03-19T16:48:05.000Z", "title": "Wavefront Sets of Unipotent Representations of Reductive $p$-adic Groups II", "authors": [ "Dan Ciubotaru", "Lucas Mason-Brown", "Emile Okada" ], "categories": [ "math.RT" ], "abstract": "The wavefront set is a fundamental invariant of an admissible representation arising from the Harish-Chandra-Howe local character expansion. In this paper, we give a precise formula for the wavefront set of an irreducible representation of real infinitesimal character in Lusztig's category of unipotent representations. Our formula generalizes the main result of arXiv:2112.14354, where this formula was obtained in the Iwahori-spherical case. We deduce that for any irreducible unipotent representation with real infinitesimal character, the algebraic wavefront set is a singleton, verifying a conjecture of M\\oeglin and Waldspurger.", "revisions": [ { "version": "v1", "updated": "2023-03-19T16:48:05.000Z" } ], "analyses": { "subjects": [ "22E50", "11F70" ], "keywords": [ "unipotent representation", "adic groups", "real infinitesimal character", "harish-chandra-howe local character expansion", "algebraic wavefront set" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }