{ "id": "2306.12004", "version": "v1", "published": "2023-06-21T03:46:54.000Z", "updated": "2023-06-21T03:46:54.000Z", "title": "Ext-groups in the Category of Strict Polynomial Functors", "authors": [ "Van Tuan Pham" ], "journal": "International Mathematics Research Notices, Volume 2021, Issue 22", "doi": "10.1093/imrn/rnz284", "categories": [ "math.AT" ], "abstract": "The aim of this paper is to study, by using the mathematical tools developed by Chalupnik, Touze, and Van der Kallen, the effect of the Frobenius twist on Ext-group in the category of strict polynomial functors. As an application, we obtain explicit formulas of cohomology of the orthogonal groups and symplectic ones.", "revisions": [ { "version": "v1", "updated": "2023-06-21T03:46:54.000Z" } ], "analyses": { "keywords": [ "strict polynomial functors", "van der kallen", "frobenius twist", "explicit formulas", "orthogonal groups" ], "tags": [ "journal article" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }