线性转换及线性运算子，特征值扩展，以矩阵表示线性运算子。
Linear transformations and linear operators, eigenvector expansion, matrices as representations of linear operators.
本文证明了关于张量空间的对称化算子的矩阵表示的一个重要结论。
A result of fundamental importance has been proved with regard to the matrix representation of symmetrizing operator on tensor space.
然后把伪逆算子应用在框架理论中，同时给出了预框架算子的伪逆算子的矩阵表示。
The matrix expression of the pseudo-inverse operator concerning the pre-frame operator was provided, and finally the theory of pseudo-inverse operators to some non-frame sequences was developed.
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