The Ext algebra of a Brauer graph algebra
journal contributionposted on 2015-03-09, 09:37 authored by Edward L. Green, Sibylle Schroll, Nicole Snashall, Rachel Taillefer
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.
This work was supported by the Leverhulme Trust in the form of an Early Career Fellowship for the second author. The third author wishes to thank the University of Leicester for granting study leave. The third and fourth authors would like to thank the Université Blaise Pascal (Clermont-Ferrand 2) for a month of invited professorship, during which part of this collaboration took place.
CitationJournal of Noncommutative Geometry, 2017, 11, pp. 537-579.
Author affiliation/Organisation/COLLEGE OF SCIENCE AND ENGINEERING/Department of Mathematics
- AM (Accepted Manuscript)