Some spectral properties for the locally \(\alpha\)-contraction operators. (English) Zbl 0266.47002
MSC:
47A10 | Spectrum, resolvent |
47B20 | Subnormal operators, hyponormal operators, etc. |
47A55 | Perturbation theory of linear operators |
47A30 | Norms (inequalities, more than one norm, etc.) of linear operators |