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设C是丛管子，T是C中的极大刚性对象，A是T对应的自同态代数，由函子HomC(T，-)诱导的C的某个满子范畴的商范畴等价于有限生成A-模范畴，基于此，通过C中的对象刻画了A的不可分解刚性模，并给出一个当且仅当的条件。

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