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The Ext algebra of a Brauer graph algebra
2017
Journal of Noncommutative Geometry
In this paper we study finite generation of the Ext algebra of a Brauer graph algebra by determining the degrees of the generators. As a consequence we characterize the Brauer graph algebras that are Koszul and those that are K2.
doi:10.4171/jncg/11-2-4
fatcat:rpqpoxi5xzfdnnpjtbuh23j6zy