Finally, the endomorphism ring of radical-projective modules is discussed.
最后对根投射模的自同态环进行了讨论。
In this paper, we define and study GR rings and finitely generated projective modules over them.
本文定义并研究了广义rigid环，并讨论了环上有限生成投射模的性质。
A generalization of PF rings relative to commutative rings: rings all finitely generated projective modules with constant rank of which are free is defined.
对交换环定义了广义p F环的概念，即一切具有常数秩的有限生成投射模都为自由模的交换环。
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