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On the spectral characterization of entire operators with deficiency indices (1,1)

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arxiv 0909.0987 v4 pith:DQFPESFI submitted 2009-09-05 math-ph math.MP

On the spectral characterization of entire operators with deficiency indices (1,1)

classification math-ph math.MP
keywords entireoperatorscharacterizationsdeficiencyindicesoperatorspectralbranges
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For entire operators and entire operators in the generalized sense, we provide characterizations based on the spectra of their selfadjoint extensions. In order to obtain these spectral characterizations, we discuss the representation of a simple, regular, closed symmetric operator with deficiency indices (1,1) as a multiplication operator in a certain de Branges space.

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