Operators on Hilbert spaces/ V S Sunder

Includes bibliography and index

Hilbert Space -- The Spectral Theorem -- Beyond normal operators

This book was born out of a desire to have a brief introduction to operator theory - the spectral theorem (arguably the most important theorem in Hilbert space theory), polar decomposition, compact operators, trace-class operators, etc., which would involve a minimum of initial spadework (avoiding such digressions as, for example, the Gelfand theory of commutative Banach algebras), and which only needed simple facts from a first semester
graduate course on Functional Analysis.