Exact categories and vector space categories
Exact categories and vector space categories
In a series of papers additive subbifunctors $F$ of the bifunctor $\operatorname {Ext}_{\Lambda } ( , )$ are studied in order to establish a relative homology theory for an artin algebra $\Lambda$. On the other hand, one may consider the elements of $F(X,Y)$ as short exact sequences. We observe that …