Varieties Which are almost D-Affine

This paper produces several examples of varieties X for whichthe global sections functor (X,–): D_X-modD(X)-mod is exact,and makes D(X)-mod a quotient category of D_X-mod, but is notan equivalence. These varieties are quotients by finite groupactions of D-affine varieties. The torsion of (X,–) isalso described, in some cases. Here, D_x-mod denotes the categoryof quasi-coherent D_X-modules.