{ "id": "2003.07827", "version": "v1", "published": "2020-03-17T17:22:24.000Z", "updated": "2020-03-17T17:22:24.000Z", "title": "Extensions in the cohomology of Hilbert modular varieties", "authors": [ "Cosmin Davidescu", "Anthony J. Scholl" ], "comment": "To appear in Muenster Journal of Mathematics", "categories": [ "math.NT" ], "abstract": "We describe extension classes arising in the $\\ell$-adic and Hodge cohomology of Hilbert modular varieties, generalising results of Caspar to arbitrary dimensions. We show that this description is consistent with the \"plectic conjectures\" of Nekov\\'a\\v{r} and the second author.", "revisions": [ { "version": "v1", "updated": "2020-03-17T17:22:24.000Z" } ], "analyses": { "subjects": [ "11G18", "11F41" ], "keywords": [ "hilbert modular varieties", "hodge cohomology", "arbitrary dimensions", "plectic conjectures", "second author" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }