## Linear Operators: Spectral Theory : Self Adjoint Operators in Hilbert Space, Volume 2 |

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Page 2188

Let E be a spectral measure in the complex B - space X which is defined and

countably additive on a o - field of subsets of a

) = S , u ...

Let E be a spectral measure in the complex B - space X which is defined and

countably additive on a o - field of subsets of a

**set**A and let g be a bounded**Borel**measurable function defined on the complex plane . Then 5,1868 ( ) E ( da) = S , u ...

Page 2189

Now E , is defined and countably additive on the field of

commutes with S ( f ) . Thus to see that E1 is the resolution of the identity for S ( f )

it will suffice to show that ( iv ) o ( SIS ) E ( 8 ) x ) 5 5 for every

complex ...

Now E , is defined and countably additive on the field of

**Borel sets**and itcommutes with S ( f ) . Thus to see that E1 is the resolution of the identity for S ( f )

it will suffice to show that ( iv ) o ( SIS ) E ( 8 ) x ) 5 5 for every

**Borel set**8 ofcomplex ...

Page 2233

8 DEFINITION . Let T be a spectral operator with resolution of the identity E , and

let f be a function analytic in an open set U such that E ( U ) = I . Let { en } be an

arbitrary increasing sequence of bounded

8 DEFINITION . Let T be a spectral operator with resolution of the identity E , and

let f be a function analytic in an open set U such that E ( U ) = I . Let { en } be an

arbitrary increasing sequence of bounded

**Borel sets**with closures contained ...### 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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### Common terms and phrases

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 discrete domain elements equation equivalent established exists extension fact finite follows formal formula function 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