{ "id": "1802.02773", "version": "v1", "published": "2018-02-08T09:50:12.000Z", "updated": "2018-02-08T09:50:12.000Z", "title": "The structure and homological properties of generalized standard Auslander-Reiten components", "authors": [ "Piotr Malicki", "Andrzej SkowroĊ„ski" ], "comment": "35 pages", "categories": [ "math.RT" ], "abstract": "We describe the structure and homological properties of arbitrary generalized standard Auslander-Reiten components of artin algebras. In particular, we prove that for all but finitely many indecomposable modules in such components the Euler characteristic is defined and nonnegative. Further, we provide a handy criterion for an infinite Auslander-Reiten component of an artin algebra to be generalized standard. We solve also the long standing open problem concerning the structure of artin algebras admitting a~separating family of Auslander-Reiten components.", "revisions": [ { "version": "v1", "updated": "2018-02-08T09:50:12.000Z" } ], "analyses": { "subjects": [ "16E10", "16E30", "16G10", "16G60", "16G70" ], "keywords": [ "homological properties", "artin algebra", "standing open problem concerning", "arbitrary generalized standard auslander-reiten components", "infinite auslander-reiten component" ], "note": { "typesetting": "TeX", "pages": 35, "language": "en", "license": "arXiv", "status": "editable" } } }