Thick subcategories and virtually Gorenstein algebras
Thick subcategories and virtually Gorenstein algebras
An Artin algebra is by definition virtually Gorenstein if the class of modules which are right orthogonal (with respect to $\operatorname {Ext}^*(-,-)$) to all Gorenstein projective modules coincides with the class of modules which are left orthogonal to all Gorenstein injective modules. We provide a new characterization in terms of …