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。
A generalization of PF rings relative to commutative rings: rings all finitely generated projective modules with constant rank of which are free is defined.
概型上的拟凝聚层和凝聚层分别起着环上的模和有限生成模的作用。
Since quasi-coherent sheaves and coherent sheaves on a scheme behave as modules and finite-generated modules on a ring, respectively.
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。
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。
In this paper, we define and study GR rings and finitely generated projective modules over them.
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