Title

Approximation By Rational Functions In Hardy Space

Abstract

When applying a general principle of Partington in solving the system identification problem, it is important to find a suitable family of spaces of rational functions whose union is dense in the disk algebra. The criterion for the denseness of rational functions with prescribed poles in the Hardy space and the disk algebra is highlighted. Further, it is demonstrated that a weak version of the Hayman-Lyons condition is enough for the denseness of the rational wavelets generated by the Cauchy kernel.

Publication Date

1-1-2000

Publication Title

Computers and Mathematics with Applications

Volume

40

Issue

1

Number of Pages

137-143

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1016/S0898-1221(00)00147-4

Socpus ID

0034230843 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/0034230843

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