The Spectrum of the Unbounded Linear Operators
Fugui Tan · Neimenggu Shi-da xuebao. Zhexue shehui kexue hanwen ban · 2009
The spectral theory of linear operator plays important part in the linear operator theory,and it can be directly applied in solving concrete problems in mathematics,modern physics,quantum mechanic,and so on.The spectrum of unbounded linear operators was divided into different subsets by the different studying purposes.In this paper,we give the divisions of the spectrum of unbounded linear operators in many aspects,and obtain some relationships among the subsets.