Abstract
We present an analytic solution of certain special cases of the spectral Nevanlinna-Pick problem for two interpolation points and 2×2 matrices.
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Agler, J., Young, N.J. The two-point spectral Nevanlinna-Pick problem. Integr equ oper theory 37, 375–385 (2000). https://doi.org/10.1007/BF01192826
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DOI: https://doi.org/10.1007/BF01192826