{ "id": "2309.02727", "version": "v1", "published": "2023-09-06T05:25:54.000Z", "updated": "2023-09-06T05:25:54.000Z", "title": "Semisimple groups interpretable in various valued fields", "authors": [ "Yatir Halevi", "Assaf Hasson", "Ya'acov Peterzil" ], "comment": "arXiv admin note: text overlap with arXiv:2211.00141", "categories": [ "math.LO", "math.GR" ], "abstract": "We study infinite groups interpretable in power bounded $T$-convex, $V$-minimal or $p$-adically closed fields. We show that if $G$ is an interpretable definably semisimple group (i.e., has no definable infinite normal abelian subgroups) then, up to a finite index subgroup, it is definably isogenous to a group $G_1\\times G_2$, where $G_1$ is a $K$-linear group and $G_2$ is a $\\mathbf{k}$-linear group. The analysis is carried out by studying the interaction of $G$ with four distinguished sorts: the valued field $K$, the residue field $\\mathbf{k}$, the value group $\\Gamma$, and the closed $0$-balls $K/\\mathcal{O}$.", "revisions": [ { "version": "v1", "updated": "2023-09-06T05:25:54.000Z" } ], "analyses": { "keywords": [ "semisimple groups interpretable", "valued field", "linear group", "definable infinite normal abelian subgroups", "finite index subgroup" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }