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Numerical ranges II. (English) Zbl 0262.47001
London Mathematical Society Lecture Note Series. 10. London: Cambridge University Press. VII,179 p. £2.40 (1973).

MSC:
47A10 Spectrum, resolvent
46K99 Topological (rings and) algebras with an involution
46L05 General theory of \(C^*\)-algebras
47-02 Research exposition (monographs, survey articles) pertaining to operator theory
47B15 Hermitian and normal operators (spectral measures, functional calculus, etc.)
47B40 Spectral operators, decomposable operators, well-bounded operators, etc.