提要给出了co-*-模的定义和研究了1-余倾斜模与co-*-模之间的关系,并且设APR是有限型余倾斜双模,如果有fin.dim R〈∞或fin.dimA〈∞,则|fin.dimR—fin.dimA|≤1.
The definition of co-*-modules and investigate the relation between 1-cotilting modules and co-*-modules are given. Moreover, let APR be a finitistic cotilting bimodule, if fin.dim R 〈 ∞ or fin.dim A 〈 ∞, then |fin.dim R - fin.dim A| ≤ 1.