{ "id": "1307.1322", "version": "v2", "published": "2013-07-04T13:33:39.000Z", "updated": "2013-07-22T20:18:09.000Z", "title": "Homological algebra for osp(1/2n)", "authors": [ "Kevin Coulembier" ], "journal": "Avances in Lie Superalgebras, Springer Indam Series, Gorelik and Papi (2014), 19-34", "categories": [ "math.RT", "math-ph", "math.MP" ], "abstract": "We discuss several topics of homological algebra for the Lie superalgebra osp(1|2n). First we focus on Bott-Kostant cohomology, which yields classical results although the cohomology is not given by the kernel of the Kostant quabla operator. Based on this cohomology we can derive strong Bernstein-Gelfand-Gelfand resolutions for finite dimensional osp(1|2n)-modules. Then we state the Bott-Borel-Weil theorem which follows immediately from the Bott-Kostant cohomology by using the Peter-Weyl theorem for osp(1|2n). Finally we calculate the projective dimension of irreducible and Verma modules in the category O.", "revisions": [ { "version": "v2", "updated": "2013-07-22T20:18:09.000Z" } ], "analyses": { "subjects": [ "17B55", "18G10", "17B10" ], "keywords": [ "homological algebra", "bott-kostant cohomology", "derive strong bernstein-gelfand-gelfand resolutions", "kostant quabla operator", "lie superalgebra" ], "tags": [ "journal article" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2013arXiv1307.1322C" } } }