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Stable polefinding and rational least-squares fitting via eigenvalues

A common way of finding the poles of a meromorphic function f in a domain, where an explicit expression of f is unknown but f can be evaluated at any given z, is to interpolate f by a rational function [Formula: see text] such that [Formula: see text] at prescribed sample points [Formula: see text]...

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Detalles Bibliográficos
Autores principales: Ito, Shinji, Nakatsukasa, Yuji
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Berlin Heidelberg 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6004024/
https://www.ncbi.nlm.nih.gov/pubmed/29973741
http://dx.doi.org/10.1007/s00211-018-0948-4