Geodesic
A remark on uniqueness of best rational approximants of degree 1 in $L^2$ of the circle
Electronic transactions on numerical analysis, Tome 25 (2006), pp. 54-66.

Voir la notice de l'article provenant de la source Electronic Library of Mathematics

Summary: We derive a criterion for uniqueness of a critical point in rational approximation of degree 1.
Classification : 31A25, 30E10, 30E25, 35J05
Keywords: rational approximation, uniqueness, Hardy spaces, critical points 
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     author = {Baratchart, L.},
     title = {A remark on uniqueness of best rational approximants of degree 1 in $L^2$ of the circle},
     journal = {Electronic transactions on numerical analysis},
     pages = {54--66},
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     year = {2006},
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     url = {http://geodesic.mathdoc.fr/item/ETNA_2006__25__a28/}
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Baratchart, L. A remark on uniqueness of best rational approximants of degree 1 in $L^2$ of the circle. Electronic transactions on numerical analysis, Tome 25 (2006), pp. 54-66. http://geodesic.mathdoc.fr/item/ETNA_2006__25__a28/