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
Infinitely many pairwise homotopy inequivalent 2-complexes \(K_ i\) with fixed \(\pi_ 1 K_ i\) and \(\chi (K_ i)\) - MaRDI portal