A number of interpolation problems are considered in the Schur class of $p/times q$ matrix valued functions $S$ that are analytic and contractive in the open unit disk. The interpolation constraints are specified in terms of nontangential limits and angular derivatives at one or more (of a finite number of) boundary points. Necessary and sufficient conditions for existence of solutions to these problems and a description of all the solutions when these conditions are met is given. The analysis makes extensive use of a class of reproducing kernel Hilbert spaces ${/mathcal{H}}(S)$ that was introduced by de Branges and Rovnyak. The Stein equation that is associated with the interpolation problems under consideration is analyzed in detail. A lossless inverse scattering problem is also considered.
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स्वरूप PDF ● पेज 107 ● ISBN 9781470404604 ● प्रकाशक American Mathematical Society ● डाउनलोड करने योग्य 3 बार ● मुद्रा EUR ● आईडी 6613050 ● कॉपी सुरक्षा Adobe DRM
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