{ "id": "1506.02410", "version": "v1", "published": "2015-06-08T09:25:01.000Z", "updated": "2015-06-08T09:25:01.000Z", "title": "The derived category of surface algebras: the case of torus with one boundary component", "authors": [ "Claire Amiot" ], "comment": "22 pages", "categories": [ "math.RT", "math.AT" ], "abstract": "In this paper we refine the main result of a previous paper of the author with Grimeland on derived invariants of surface algebras. We restrict to the case where the surface is a torus with one boundary component and give an easily computable derived invariant for such surface algebras. This result permits to give answers to open questions on gentle algebras: it provides examples of gentle algebras with the same AG-invariant (in the sense of Avella-Alaminos and Geiss) that are not derived equivalent and gives a partial positive answer to a conjecture due to Bobi\\'nski and Malicki on gentle $2$-cycles algebras.", "revisions": [ { "version": "v1", "updated": "2015-06-08T09:25:01.000Z" } ], "analyses": { "subjects": [ "16E35", "16G20", "14F35", "13F60" ], "keywords": [ "surface algebras", "boundary component", "derived category", "gentle algebras", "main result" ], "note": { "typesetting": "TeX", "pages": 22, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2015arXiv150602410A" } } }