On the Bessel property of systems of root functions of a differential operator.
type: Item
instance of: scholarly article
title: On the Bessel property of systems of root functions of a differential operator.
zbMATH Open document ID: 1050.34125
author: D. Massart
published in: Doklady Mathematics
publication date: 2004-06-15T00:00:00Z
review text: The author proves a necessary condition for systems of normalized root functions of a differential operator to be Bessel. He obtains a sharp estimate on the eigenvalues and refines the criterion for the Bessel property.
Mathematics Subject Classification ID: 34L10
Mathematics Subject Classification ID: 47E05
Mathematics Subject Classification ID: 34L15
zbMATH DE Number: 2074692
zbMATH Keywords: Bessel property
zbMATH Keywords: root functions
zbMATH Keywords: sharp estimate on eigenvalues
reviewed by: Messoud Efendiev
MaRDI profile type: Publication
description: scientific article; zbMATH DE number 2074692