Approximation numbers = singular values
Författare
Summary, in English
This paper introduces a generalisation of the notion of singular value for Hilbert space operators to more general Banach spaces. It is shown that for a simple integral operator of Hardy type the singular values are the eigenvalues of a non-linear Sturm-Liouville equation and coincide with the approximation numbers of the operator. Finally, asymptotic formulas for the singular numbers are deduced. (c) 2006 Published by Elsevier B.V.
Avdelning/ar
Publiceringsår
2007
Språk
Engelska
Sidor
102-110
Publikation/Tidskrift/Serie
Journal of Computational and Applied Mathematics
Volym
208
Issue
1
Dokumenttyp
Artikel i tidskrift
Förlag
Elsevier
Ämne
- Mathematics
Nyckelord
- Pruefer transform
- eigenvalue
- generalised trigonometric function
- asymptotics
- Bernstein width
- Sturm-Liouville
Status
Published
ISBN/ISSN/Övrigt
- ISSN: 0377-0427