Interpolating sequences and the Nevanlinna Pick problem

Autores: Arne Stray
Localización: Publicacions matematiques, ISSN 0214-1493, Vol. 35, Nº 2, 1991, págs. 507-516
Idioma: inglés
DOI: 10.5565/publmat_35291_14
Títulos paralelos:
- Interpolación de series y el problem Nevanlinna-Pick
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Resumen
- The extremal solutions to the Nevanlinna Pick problem are studied. If there is more than one solution, Nevanlinna showed that all extremal solutions are inner functions. With some extra information on the interpolation data we find that the extremal solutions are Blaschke products whose zeroes form a finite union of interpolating sequences.