## Linear Operators: Part III: Spectral Operators [by] Nelson Dunford and Jacob T. Schwartz, with the Assistance of William G. Bade and Robert G. Bartle, Volume 1 |

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Page 1947

... which proves that BTB - 1 is a unitary operator . ... projections in a Hilbert space H. Then there exists a bounded self

... which proves that BTB - 1 is a unitary operator . ... projections in a Hilbert space H. Then there exists a bounded self

**adjoint operator**B in H with a ...Page 2170

If T is a bounded self

If T is a bounded self

**adjoint operator**in Hilbert space , its spectrum is real and for every non - real a we have 1 R ( Q ; T ) ] = | I ( 0 ) | PROOF .Page 2508

Von Neumann shows that , by adding a Hilbert - Schmidt class self

Von Neumann shows that , by adding a Hilbert - Schmidt class self

**adjoint operator**V to a bounded self**adjoint operator**H such that { ( H ) = Esing ( H ) ...### What people are saying - Write a review

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### Contents

SPECTRAL OPERATORS | 1924 |

Introduction | 1927 |

Terminology and Preliminary Notions | 1929 |

Copyright | |

28 other sections not shown

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adjoint operator Amer analytic apply arbitrary assumed B-space Banach space belongs Boolean algebra Borel set boundary conditions bounded bounded operator Chapter clear closed commuting compact complex constant contains continuous converges Corollary corresponding countably additive defined Definition denote dense determined differential operator domain elements equation equivalent established exists extension fact finite follows formal formula given gives Hence Hilbert space hypothesis identity inequality integral invariant inverse Lemma limit linear operator Math Moreover multiplicity norm perturbation plane positive preceding present problem projections PROOF properties prove range resolution resolvent restriction Russian satisfies scalar type seen sequence shown shows similar solution spectral measure spectral operator spectrum subset sufficiently Suppose Theorem theory topology unbounded uniformly unique valued vector zero