本文利用射影算子、积分算子、乘法算子来证明各种谱的存在性。
In this article, the existence possibility of various spectra is proved with projector operator, integral operator and multiplication operator.
通过用射影算子方法，我们对所有原子簇模型中的化学吸附键进行了分析。
The analysis of the chemisorption bond has been carried out by means of projection operator techniques.
然后根据定位杆的基准坐标，得到该层的射影变换算子T；
Then, according to the base coordinate of locating rod, gain the coefficients of projective transformation.
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