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 1912
exception , used from Chapter XIV are elementary self - contained lemmas concerning approximation of integrable functions by smooth functions . The exception is Sobolev's theorem , which is used only in the proof of a corollary ...
exception , used from Chapter XIV are elementary self - contained lemmas concerning approximation of integrable functions by smooth functions . The exception is Sobolev's theorem , which is used only in the proof of a corollary ...
Page 1915
Our original version of Theorem XVI.5.19 was presented as a corollary to the preceding theorem , but since it is essential for a number of the deep results in Chapter XX which have important applications to some of the most difficult ...
Our original version of Theorem XVI.5.19 was presented as a corollary to the preceding theorem , but since it is essential for a number of the deep results in Chapter XX which have important applications to some of the most difficult ...
Page 1916
Chapter XIX ends with a section which gives results concerning completeness properties of the set of eigenvectors of a perturbed operator . These theorems make assertions less specific than those obtained in the first sections of ...
Chapter XIX ends with a section which gives results concerning completeness properties of the set of eigenvectors of a perturbed operator . These theorems make assertions less specific than those obtained in the first sections of ...
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Contents
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 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