The root subspaces of operators that depent analytically on a parameter. (Russian) Zbl 0234.47010
MSC:
| 47A10 | Spectrum, resolvent |
| 47A56 | Functions whose values are linear operators (operator- and matrix-valued functions, etc., including analytic and meromorphic ones) |
| 47A05 | General (adjoints, conjugates, products, inverses, domains, ranges, etc.) |
