{ "id": "2506.17070", "version": "v1", "published": "2025-06-20T15:16:31.000Z", "updated": "2025-06-20T15:16:31.000Z", "title": "A diagrammatic approach to reflection functors", "authors": [ "Haruto Murata" ], "comment": "Draft version. An expanded version is in preparation", "categories": [ "math.RT" ], "abstract": "We construct reflection functors for quiver Hecke algebras associated with arbitrary symmetrizable Kac-Moody algebras, from a higher representation-theoretic viewpoint. These functors provide a categorification of Lusztig's braid group action on the quantum group. Similar functors were recently constructed independently by Kashiwara-Kim-Oh-Park via a different approach.", "revisions": [ { "version": "v1", "updated": "2025-06-20T15:16:31.000Z" } ], "analyses": { "subjects": [ "20G42", "18N25", "20C08", "16T20" ], "keywords": [ "diagrammatic approach", "lusztigs braid group action", "construct reflection functors", "quiver hecke algebras", "higher representation-theoretic viewpoint" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }