A perturbation lemma
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- by Karl Gustafson PDF
- Bull. Amer. Math. Soc. 72 (1966), 334-338
References
- Seymour Goldberg, Unbounded linear operators: Theory and applications, McGraw-Hill Book Co., New York-Toronto, Ont.-London, 1966. MR 0200692
- Tosio Kato, Perturbation theory for nullity, deficiency and other quantities of linear operators, J. Analyse Math. 6 (1958), 261–322. MR 107819, DOI 10.1007/BF02790238
- Edward Nelson, Feynman integrals and the Schrödinger equation, J. Mathematical Phys. 5 (1964), 332–343. MR 161189, DOI 10.1063/1.1704124
Additional Information
- Journal: Bull. Amer. Math. Soc. 72 (1966), 334-338
- DOI: https://doi.org/10.1090/S0002-9904-1966-11521-5
- MathSciNet review: 0187101