共 4 条
- [1] Coddington E. A., 1955, THEORY ORDINARY DIFF
- [2] Dunford N., 1963, LINEAR OPERATORS, V2
- [3] Kato T., 1966, PERTURBATION THEORY, V132, P396
- [4] ON THE NORMALIZATION OF CHARACTERISTIC DIFFERENTIALS IN CONTINUOUS SPECTRA [J]. PHYSICAL REVIEW, 1947, 72 (06): : 516 - 517