{ "id": "1910.12303", "version": "v1", "published": "2019-10-27T17:19:07.000Z", "updated": "2019-10-27T17:19:07.000Z", "title": "Finite descent obstruction for Hilbert modular varieties", "authors": [ "Gregorio Baldi", "Giada Grossi" ], "comment": "Comments are welcome", "categories": [ "math.NT" ], "abstract": "Let $S$ be a finite set of primes. We prove that a form of finite Galois descent obstruction is the only obstruction to the existence of $\\mathbb{Z}_{S}$-points on integral models of Hilbert modular varieties, extending a result of D.Helm and F.Voloch about modular curves. Let $L$ be a totally real field. Under (a special case of) the absolute Hodge conjecture and a weak Serre's conjecture for mod $\\ell$ representations of the absolute Galois group of $L$, we prove that the same holds also for the $\\mathcal{O}_{L,S}$-points.", "revisions": [ { "version": "v1", "updated": "2019-10-27T17:19:07.000Z" } ], "analyses": { "keywords": [ "hilbert modular varieties", "finite descent obstruction", "finite galois descent obstruction", "absolute hodge conjecture", "weak serres conjecture" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }