Interpolation in the Nevanlinna and Smirnov classes and harmonic majorants
Idioma
en
Article de revue
Este ítem está publicado en
J. Funct. Anal. 217. 2004, vol. 217, p. 1-37
Resumen en inglés
We consider a free interpolation problem in Nevanlinna and Smirnov classes and find a characterization of the corresponding interpolating sequences in terms of the existence of harmonic majorants of certain functions. We ...Leer más >
We consider a free interpolation problem in Nevanlinna and Smirnov classes and find a characterization of the corresponding interpolating sequences in terms of the existence of harmonic majorants of certain functions. We also consider the related problem of characterizing positive functions in the disk having a harmonic majorant. An answer is given in terms of a dual relation which involves positive measures in the disk with bounded Poisson balayage. We deduce necessary and sufficient geometric conditions, both expressed in terms of certain maximal functions.< Leer menos
Palabras clave en inglés
free interpolation
Smirnov and Nevanlinna class
harmonic majorants
Poisson balayage
Orígen
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