From the reviews: "[ ] An excellent textbook in the theory of linear operators in Banach and Hilbert spaces. It is a thoroughly worthwhile reference work both for graduate students in functional analysis as well as for researchers in perturbation, spectral, and scattering theory. [ ] I can recommend it for any mathematician or physicist interested in this field." Zentralblatt MATH
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From the reviews: "[ ] An excellent textbook in the theory of linear operators in Banach and Hilbert spaces. It is a thoroughly worthwhile reference work both for graduate students in functional analysis as well as for researchers in perturbation, spectral, and scattering theory. [ ] I can recommend it for any mathematician or physicist interested in this field." Zentralblatt MATH
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Add this copy of Perturbation Theory for Linear Operators to cart. $65.00, very good condition, Sold by Moe's Books rated 5.0 out of 5 stars, ships from Berkeley, CA, UNITED STATES, published 1976 by Springer-Verlag.