Cohomology of exact categories and (non-)additive sheavesCohomology of exact categories and (non-)additive sheaves
Faculty of Sciences. Mathematics and Computer Science
2015New York, N.Y., 2015
Advances in mathematics. - New York, N.Y.
272(2015), p. 652-698
University of Antwerp
We use (non-)additive sheaves to introduce an (absolute) notion of Hochschild cohomology for exact categories as Ext's in a suitable bisheaf category. We compare our approach to various definitions present in the literature.