Geodesic
Approximation Problems for Generalized Schur Functions in a Neighborhood of 1
Matematičeskie zametki, Tome 82 (2007) no. 1, pp. 150-155 Cet article a éte moissonné depuis la source Math-Net.Ru

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Keywords: generalized Schur function, Nevanlinna function, Pontryagin space, Hilbert space, Cayley–Neumann transform. 
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E. N. Andreishcheva. Approximation Problems for Generalized Schur Functions in a Neighborhood of 1. Matematičeskie zametki, Tome 82 (2007) no. 1, pp. 150-155. http://geodesic.mathdoc.fr/item/MZM_2007_82_1_a15/

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