{ "id": "2408.01856", "version": "v1", "published": "2024-08-03T19:47:02.000Z", "updated": "2024-08-03T19:47:02.000Z", "title": "On Speh representations for level zero supercuspidal representations and Ginzburg-Kaplan gamma factors", "authors": [ "Elad Zelingher" ], "comment": "42 pages. Comments are welcome!", "categories": [ "math.RT", "math.NT" ], "abstract": "We establish a relation between Speh representations of $\\mathrm{GL}_n\\left(\\mathbb{F}_q\\right)$ and Speh representations of $\\mathrm{GL}_n\\left(F\\right)$, where $F$ is a non-archimedean local field. We use irreducible level zero supercuspidal representations to show that these two notions of Speh representations associated to cuspidal representations are related via a commutative diagram, and that their corresponding $(k,c)$ $\\psi$-Whittaker models are also related. We use these results to relate the local Ginzburg-Kaplan integrals for level zero supercuspidal representations to their finite field counterparts.", "revisions": [ { "version": "v1", "updated": "2024-08-03T19:47:02.000Z" } ], "analyses": { "subjects": [ "11F70", "11F66", "20C33", "22E50" ], "keywords": [ "speh representations", "ginzburg-kaplan gamma factors", "irreducible level zero supercuspidal representations", "non-archimedean local field", "finite field counterparts" ], "note": { "typesetting": "TeX", "pages": 42, "language": "en", "license": "arXiv", "status": "editable" } } }