论文标题
与直接限制通勤的协变函数
Covariant functors commuting with direct limits
论文作者
论文摘要
在这项工作中，我们说明在协变右函子上的条件，以便它以直接限制通勤。这些条件与在射影模块的直接限制下函子的通勤性有关。我们证明，如果函子通勤具有射影模块的直接限制，则函子的通勤将以直接限制为单位。
In this work we state conditions on a covariant right exact functor so that it commutes with direct limits. These conditions are related to the commutativity of the functor under direct limits of projective modules. We prove that if the functor commutes with direct limits of projective modules, then the functor commutes with direct limits.
