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
A finiteness theorem for isoparametric hypersurfaces - MaRDI portal

A finiteness theorem for isoparametric hypersurfaces (Q1336197)

From MaRDI portal





scientific article; zbMATH DE number 663724
Language Label Description Also known as
English
A finiteness theorem for isoparametric hypersurfaces
scientific article; zbMATH DE number 663724

    Statements

    A finiteness theorem for isoparametric hypersurfaces (English)
    0 references
    0 references
    17 October 1995
    0 references
    It is proved that there are only finitely many diffeomorphism types of compact, isoparametric hypersurfaces in \(S^{n + 1}\) with four distinct principal curvatures. The proof depends on Cheeger's finiteness theorem [see \textit{J. Cheeger}, Am. J. Math. 92, 61-74 (1970; Zbl 0194.529)].
    0 references
    isoparametric hypersurfaces
    0 references
    principal curvatures
    0 references
    Cheeger's finiteness theorem
    0 references

    Identifiers