设(-6,三,△)是三角范畴.记△0是所有可裂三角构成△的满子范畴.给出Freyd范畴U(£)和V(£)与范畴B(£)=△/△0之间的关系.
Let £ be additive category,△0denote the full subcategory of △ with the split triangles as obiects. Gives the relations between Freyd categories U(£) ,V(£) and category B(£).