The structure of rightF-⊥ T-approximations of any finitely generated module over an artin algebra Λ is given, relative to an additive subbifunctorF of Ext Λ 1 (-, -) and anF-cotilting moduleT.
基金This work was supported by the National Natural Science Foundation of China(Grant No. 10001017) Scientific Research Foundation for Returned Overseas Chinese Scholars by the Ministry of Education Nanjing University Talent Development Foundation.
文摘The structure of rightF-⊥ T-approximations of any finitely generated module over an artin algebra Λ is given, relative to an additive subbifunctorF of Ext Λ 1 (-, -) and anF-cotilting moduleT.
