摘要
Let A be a finite dimensional algebra over a field k. We consider a subfunc- tor F of Ext1A(-, -), which has enough projectives and injectives such that P(F) is of finite type, where P(F) denotes the set of F-projectives. One can get the relative derived category Db(A) of A-rood. For an F-self-orthogonal module TF, we discuss the relation between the relative quotient triangulated category Db(A)/Kb(addTF) and the relative stable category of the Frobenius category of TF-Cohen-Macaulay modules. In particular, for an F-Gorenstein algebra A and an F-tilting A-module TF, we get a triangle equiva- lence between DbF(A)/Kb(add TF) and the relative stable category of TF-Cohen-Macaulay modules. This gives the relative version of a result of Chen and Zhang.
Let A be a finite dimensional algebra over a field k. We consider a subfunc- tor F of Ext1A(-, -), which has enough projectives and injectives such that P(F) is of finite type, where P(F) denotes the set of F-projectives. One can get the relative derived category Db(A) of A-rood. For an F-self-orthogonal module TF, we discuss the relation between the relative quotient triangulated category Db(A)/Kb(addTF) and the relative stable category of the Frobenius category of TF-Cohen-Macaulay modules. In particular, for an F-Gorenstein algebra A and an F-tilting A-module TF, we get a triangle equiva- lence between DbF(A)/Kb(add TF) and the relative stable category of TF-Cohen-Macaulay modules. This gives the relative version of a result of Chen and Zhang.