{ "id": "1608.04181", "version": "v1", "published": "2016-08-15T05:31:54.000Z", "updated": "2016-08-15T05:31:54.000Z", "title": "$\\F_p$-representations over $p$-fields", "authors": [ "Chandan Singh Dalawat" ], "comment": "9 pages", "categories": [ "math.NT" ], "abstract": "Let $p$ be a prime, $k$ a finite extension of $\\F_p$ of cardinal $q$, $l$ a finite extension of $k$ of group $\\Sigma=\\Gal(l|k)$, and $T$ a subgroup of $l^\\times$. Using the method of \"\\thinspace little groups\\thinspace\", we classify irreducible $\\F_p$-representations of the group $G=T\\times_q\\Sigma$, the twisted product of $\\Sigma$ with the $\\Sigma$-module $T$. We then use these results to classify irreducible continuous $\\F_p$-representations of the profinite group of automorphisms $\\Gal(\\tilde K|K)$ of the maximal galoisian extension $\\tilde K$ of a local field $K$ with residue field~$k$.", "revisions": [ { "version": "v1", "updated": "2016-08-15T05:31:54.000Z" } ], "analyses": { "subjects": [ "11F80", "11S99", "20C20" ], "keywords": [ "representations", "finite extension", "maximal galoisian extension", "local field", "profinite group" ], "note": { "typesetting": "TeX", "pages": 9, "language": "en", "license": "arXiv", "status": "editable" } } }