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 criterion for compatibility of conformal and projective structures - MaRDI portal

A criterion for compatibility of conformal and projective structures (Q2249767)

From MaRDI portal
scientific article
Language Label Description Also known as
English
A criterion for compatibility of conformal and projective structures
scientific article

    Statements

    A criterion for compatibility of conformal and projective structures (English)
    0 references
    0 references
    0 references
    3 July 2014
    0 references
    The authors prove a nice and important theorem giving necessary and sufficient conditions for local compatibility of conformal and projective structures defined on a smooth manifold with a metric tensor and a linear connection. They prove also that if the first cohomology group of the manifold vanishes then these conditions give a global compatibility.
    0 references
    0 references
    0 references
    0 references
    0 references
    0 references
    conformal structure
    0 references
    projective structure
    0 references
    Thomas symbol
    0 references
    compatible
    0 references
    Roger Liouville problem
    0 references
    0 references
    0 references
    0 references