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Spectral analysis of linear operators has always been one of the more active and important fields of operator theory, and of extensive interest to many operator

Spectral analysis of linear operators has always been one of the more active and important fields of operator theory, and of extensive interest to many operator

Spectral analysis of linear operators has always been one of the more active and important fields of operator theory, and of extensive interest to many operator

The present lectures are based on a course deli vered by the authors at the Uni versi ty of Bucharest, in the winter semester 1985-1986. Without aiming at compl

By a Hilbert-space operator we mean a bounded linear transformation be tween separable complex Hilbert spaces. Decompositions and models for Hilbert-space opera