{ "id": "math/0609003", "version": "v5", "published": "2006-08-31T20:47:26.000Z", "updated": "2006-12-14T12:41:01.000Z", "title": "Tensor product decompositions and open orbits in multiple flag varieties", "authors": [ "Vladimir L. Popov" ], "comment": "23 pages. Footnote on upper bounds of separation indices of root systems is added (p. 15). In Example 11 some recent results are mentioned and new references are added", "journal": "J. Algebra, Vol. 313 (2007), 392-416", "doi": "10.1016/j.jalgebra.2006.11.042", "categories": [ "math.RT", "math.AG", "math.CO" ], "abstract": "For a connected semisimple algebraic group $G$, we consider some special infinite series of tensor products of simple $G$-modules whose $G$-fixed point spaces are at most one-dimensional. We prove that their existence is closely related to the existence of open $G$-orbits in multiple flag varieties and address the problem of classifying such series.", "revisions": [ { "version": "v5", "updated": "2006-12-14T12:41:01.000Z" } ], "analyses": { "subjects": [ "20G05", "14L30" ], "keywords": [ "multiple flag varieties", "tensor product decompositions", "open orbits", "special infinite series", "connected semisimple algebraic group" ], "tags": [ "journal article" ], "note": { "typesetting": "TeX", "pages": 23, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2006math......9003P" } } }