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Statements
5 June 1993
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spectral operator
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spectrum
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Cauchy initial value problems
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non self- adjoint systems of perturbed Laplacian operators
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Wiener-Hopf and Wiener- Lévy theorems
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decomposable operator
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stability theorems for semi- Fredholm operators
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algebras of spectral operators
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multiplicity theory for complete Boolean algebras of projections
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self-adjoint Sturm- Liouville theory
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completeness properties of the set of eigenvectors of the perturbed operators
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spectral differential operators of second order
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wave operator method
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