The Operator Valued Autoregressive Filter Problem and the Suboptimal Nehari Problem in Two Variables

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Necessary and sufficient conditions are given for the solvability of the operator valued two-variable autoregressive filter problem. In addition, in the two variable suboptimal Nehari problem sufficient conditions are given for when a strictly contractive little Hankel has a strictly contractive symbol.
18 pages

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Functional Analysis, 42B05, 47A57, 47B35

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http://salesiana.dossiersoluciones.com/handle/123456789/73708

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/math/0412508
 http://arxiv.org/abs/math/0412508

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arXiv