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Exponentials of de Branges–Rovnyak kernels
Published online by Cambridge University Press: 03 June 2021
Abstract
In this note, we give a new property of de Branges–Rovnyak kernels. As the main theorem, it is shown that the exponential of de Branges–Rovnyak kernel is strictly positive definite if the corresponding Schur class function is nontrivial.
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- © Canadian Mathematical Society 2021
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