A prediction problem in |
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Authors: | Mohsen Pourahmadi Akihiko Inoue Yukio Kasahara |
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Affiliation: | Division of Statistics, Northern Illinois University, DeKalb, Illinois 60115-2854 ; Department of Mathematics, Faculty of Science, Hokkaido University, Sapporo 060-0810, Japan ; Department of Mathematics, Faculty of Science, Hokkaido University, Sapporo 060-0810, Japan |
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Abstract: | For a nonnegative integrable weight function on the unit circle , we provide an expression for , in terms of the series coefficients of the outer function of , for the weighted distance , where is the normalized Lebesgue measure and ranges over trigonometric polynomials with frequencies in , , . The problem is open for . |
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Keywords: | Duality and orthogonalization extremal problems stationary processes |
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