{ "id": "1908.02245", "version": "v1", "published": "2019-08-06T16:33:49.000Z", "updated": "2019-08-06T16:33:49.000Z", "title": "Gluing support τ-tilting modules over τ-tilting finite algebras", "authors": [ "Yingying Zhang" ], "comment": "10 pages, comments welcome", "categories": [ "math.RT" ], "abstract": "The notion of (semi)bricks, regarded as a generalization of (semi)simple modules, appeared in a paper of Ringel in 1976. In recent years, there has been several new developments motivated by links to {\\tau}-tilting theory studied by Demonet-Iyama-Jasso and Asai. In this paper, we will discuss how to glue semibricks along a recollement with the intermediate extension functor similar to gluing simple modules by Beilinson-Bernstein-Deligne. As an application, we investigate the behavior of {\\tau}-tilting finite under recollements of module categories of algebras. Moreover, we give some examples to show the construction of support {\\tau}-tilting modules over {\\tau}-tilting finite algebras by gluing semibricks via recollements.", "revisions": [ { "version": "v1", "updated": "2019-08-06T16:33:49.000Z" } ], "analyses": { "subjects": [ "16G10", "18A22", "18A40", "18E10" ], "keywords": [ "finite algebras", "gluing support", "intermediate extension functor similar", "recollement", "module categories" ], "note": { "typesetting": "TeX", "pages": 10, "language": "en", "license": "arXiv", "status": "editable" } } }