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Continuation of Hermitian Positive Definite Functions and Related Questions

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We study the intimate relation of the continuation problem for hermitian positive definite functions with direct and inverse spectral problems for canonical systems and strings and with the extrapolation problem for second order stochastic processes.

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Authors and Affiliations

  1. Odessa, Ukraine

    Mark G. Krein

  2. Institut für Analysis und Scientific Computing, Technische Universität Wien, 1040, Vienna, Austria

    Heinz Langer

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  1. Mark G. Krein
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  2. Heinz Langer
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Correspondence to Heinz Langer.

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Mark G. Krein: 3.4.1907–17.10.1989.

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Krein, M.G., Langer, H. Continuation of Hermitian Positive Definite Functions and Related Questions. Integr. Equ. Oper. Theory 78, 1–69 (2014). https://doi.org/10.1007/s00020-013-2091-z

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