## Linear Operators: Spectral operators |

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Page 2307

The last example above illustrates a problem which will be of great concern to us in the remainder of this chapter : the problem of finding which

The last example above illustrates a problem which will be of great concern to us in the remainder of this chapter : the problem of finding which

**formal differential operators**and sets of boundary conditions lead to spectral operators .Page 2318

Let T be the unbounded operator in Hilbert space defined by the

Let T be the unbounded operator in Hilbert space defined by the

**formal differential operator**t = - ( d / dx ) 2 and the boundary conditions f ( 0 ) – ko f ' ( 0 ) = 0 , f ( 1 ) – ka f ' ( 1 ) = 0 , where ko and ky are arbitrary ...Page 2371

Let T be a linear operator determined by the

Let T be a linear operator determined by the

**formal differential operator**din din - 2 T = ( he ) + an - 2 ( t ) t ... be the linear operator defined by these same boundary conditions and by the formal differential XIX.6 2371 NOTES AND ...### What people are saying - Write a review

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### Contents

SPECTRAL OPERATORS 1937 1941 1945 XV Spectral Operators | 1924 |

Introduction | 1927 |

Terminology and Preliminary Notions | 1929 |

Copyright | |

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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 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