最后，给出了广义模糊粗糙近似算子的分解与合成定理。
At last, we we prove the decomposition and synthetize theorems of general fuzzy rough approximation operator.
在第二章中，作者以谱分解、函数演算等为工具，给出一些重要的算子不等式与范数不等式。
In this chapter, we give some operator inequalities and norm inequalities by means of spectral decomposition and functional calculus.
方法利用效应代数、序列效应代数的定义及算子分解的方法。
Methods Using the definition of effect algebra, sequential effect algebra and the polar decomposition of operator.
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