A note on interpolation in the generalized Schur class

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Realization theory for operator colligations on Pontryagin spaces is used to study interpolation and factorization in generalized Schur classes. Several criteria are derived which imply that a given function is almost the restriction of a generalized Schur function. The role of realization theory in coefficient problems is also discussed.
28 pages

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Functional Analysis, 47A57, 42A70

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http://salesiana.dossiersoluciones.com/handle/123456789/59688

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/math/0008057
 http://arxiv.org/abs/math/0008057

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arXiv