On cyclic variation-diminishing transforms
type: Item
instance of: scholarly article
title: On cyclic variation-diminishing transforms
zbMATH Open document ID: 0808.42002
author: Gisela Kurth
author: Stephan Ruscheweyh
author: Luis Salinas
published in: Journal of Approximation Theory
publication date: 1994-09-27T00:00:00Z
review text: The authors give a new and more manageable characterization for Cyclic Pólya Frequency (CPF) functions of order 3. Their theorems also improve some known results concerning smoothness properties in CPF. Furthermore, a conjecture of Mairhuber, Schoenberg and Williamson about discontinuous CPF functions is also proved.
reviewed by: László Leindler
Mathematics Subject Classification ID: 42A10
zbMATH DE Number: 645055
zbMATH Keywords: cyclic Pólya frequency functions
MaRDI profile type: Publication
full work available at URL: jath.1994.1111
OpenAlex ID: W2036782981
DOI: 10.1006/JATH.1994.1111
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description: scientific article; zbMATH DE number 645055