## 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 1931

If the

If the

**domain**of a countably additive spectral measure E is a o - field , then E is countably additive in the strong operator topology and bounded . The boundedness of E ( 0 ) follows from Corollaries IV.10.2 and II.3.21 .Page 2087

68 Let As be the operator of the preceding exercise and let B be an arbitrary bounded linear operator in Hp . Then ( i ) The operator As + B with

68 Let As be the operator of the preceding exercise and let B be an arbitrary bounded linear operator in Hp . Then ( i ) The operator As + B with

**domain**( p ) T ( 29 ) ( RN ) is the infinitesimal generator of a strongly continuous semi ...Page 2256

a where C , is a finite collection of closed Jordan curves bounding a

a where C , is a finite collection of closed Jordan curves bounding a

**domain**D , containing the union of o ( T ) and a neighborhood of infinity , C , being oriented in the customary positive sense of complex variable theory .### What people are saying - Write a review

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### Contents

SPECTRAL OPERATORS | 1924 |

Introduction | 1927 |

Terminology and Preliminary Notions | 1929 |

Copyright | |

47 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 defined Definition denote dense determined differential operator domain elements equation equivalent established exists extension 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