{ "id": "2201.03890", "version": "v2", "published": "2022-01-11T11:37:38.000Z", "updated": "2022-01-12T11:05:25.000Z", "title": "PBW degenerations, quiver Grassmannians, and toric varieties", "authors": [ "Evgeny Feigin" ], "comment": "16 pages, ICM 2022 proceedings", "categories": [ "math.RT", "math.AG", "math.CO" ], "abstract": "We present a review on the recently discovered link between the Lie theory,the theory of quiver Grassmannians, and various degenerations of flag varieties. Our starting point is the induced Poincar\\'{e}--Birkhoff--Witt filtration on the highest weight representations and the corresponding PBW degenerate flag varieties.", "revisions": [ { "version": "v2", "updated": "2022-01-12T11:05:25.000Z" } ], "analyses": { "keywords": [ "quiver grassmannians", "pbw degenerations", "toric varieties", "corresponding pbw degenerate flag varieties", "highest weight representations" ], "note": { "typesetting": "TeX", "pages": 16, "language": "en", "license": "arXiv", "status": "editable" } } }