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
Some new examples of flocks of \(Q^+(3,q)\) - MaRDI portal

Some new examples of flocks of \(Q^+(3,q)\) (Q1112324)

From MaRDI portal





scientific article; zbMATH DE number 4078126
Language Label Description Also known as
English
Some new examples of flocks of \(Q^+(3,q)\)
scientific article; zbMATH DE number 4078126

    Statements

    Some new examples of flocks of \(Q^+(3,q)\) (English)
    0 references
    0 references
    1988
    0 references
    After some preliminary results, the author exhibits some new examples of flocks of \(Q^+(3,q)\), that is of partition of the non-singular ruled quadric \(Q^+(3,q)\) of PG(3,q) into disjoint irreducible conics. Theorem 2: for \(q=11,23,59\) there exist a flock which is neither linear nor a Thas flock. A flock is called linear if its conics belong to planes through a line (the axis of the flock); and it is a Thas flock if the conics belong to planes through a line \(\ell_ 1\) or its polar \(\ell_ 2\) (with respect to \(Q^+(3,q))\).
    0 references
    linear flocks
    0 references
    Thas flock
    0 references

    Identifiers