regular band

To the normal operator T in the complex Hilbert space H, when H is separable, T not only has the spectral representation but has the ordered spectral representation.

对于复Ｈｉｌｂｅｒｔ空间Ｈ上的正常算子Ｔ，当Ｈ是可分的空间时，Ｔ不仅有谱表示，而且有有序谱表示。