Given two graded rings (The equation is abbreviated) and one graded bimodule (The equation is abbreviated) we can obtain a graded trigangular matrix ring (The equation is abbreviated).
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释义
摘要给出两个分次环(方程式略)和一个分次双模(方程式略),可以得到一个分次三角矩阵环(方程式略)。
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