{ "id": "1911.09021", "version": "v1", "published": "2019-11-20T16:48:47.000Z", "updated": "2019-11-20T16:48:47.000Z", "title": "On band modules and $τ$-tilting finiteness", "authors": [ "Sibylle Schroll", "Hipolito Treffinger", "Yadira Valdivieso" ], "comment": "10 pages", "categories": [ "math.RT", "math.RA" ], "abstract": "In this paper we study general properties of band modules and their endomorphisms in the module category of a finite dimensional algebra. As an application we describe properties of torsion classes containing band modules. Furthermore, we show that a special biserial algebra is $\\tau$-tilting finite if and only if no band module is a brick.", "revisions": [ { "version": "v1", "updated": "2019-11-20T16:48:47.000Z" } ], "analyses": { "keywords": [ "tilting finiteness", "torsion classes containing band modules", "finite dimensional algebra", "special biserial algebra", "study general properties" ], "note": { "typesetting": "TeX", "pages": 10, "language": "en", "license": "arXiv", "status": "editable" } } }