Deprecated: $wgMWOAuthSharedUserIDs=false is deprecated, set $wgMWOAuthSharedUserIDs=true, $wgMWOAuthSharedUserSource='local' instead [Called from MediaWiki\HookContainer\HookContainer::run in /var/www/html/w/includes/HookContainer/HookContainer.php at line 135] in /var/www/html/w/includes/Debug/MWDebug.php on line 372
Besov spaces and a trace ideal - MaRDI portal

Besov spaces and a trace ideal (Q1307394)

From MaRDI portal





scientific article; zbMATH DE number 1355008
Language Label Description Also known as
English
Besov spaces and a trace ideal
scientific article; zbMATH DE number 1355008

    Statements

    Besov spaces and a trace ideal (English)
    0 references
    0 references
    31 October 1999
    0 references
    Let \(\Pi_2\) be the operator ideal of all absolutely 2-summing operators and let \((\Pi_2)_{2,1}^{(a)}\) be the ideal of operators whose sequences of \(\Pi_2\)-approximation numbers belong to the Lorentz sequence space \(\ell_{2,1}\). The author presents two results of the following kind. If a given matrix or kernel function belongs to a certain Besov space, then the operator it generates is in \((\Pi_2)_{2,1}^{(a)}\).
    0 references
    0 references
    Besov spaces
    0 references
    absolutely 2-summing operators
    0 references
    Lorentz sequence space
    0 references

    Identifiers

    0 references
    0 references
    0 references
    0 references
    0 references
    0 references