A Commutant Lifting Theorem for a Domain
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J. Agler; N.J. Young
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Article
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1999
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Elsevier Science
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English
⚖ 183 KB
We characterise the pairs of commuting operators on Hilbert space for which the domain 1= We give an application to the spectral Nevanlinna Pick problem: we obtain a necessary condition for the existence of an analytic 2\_2 matrix function satisfying interpolation conditions and bounds on eigenvalu