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

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scientific article; zbMATH DE number 4078126
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Some new examples of flocks of \(Q^+(3,q)\)
scientific article; zbMATH DE number 4078126

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    Some new examples of flocks of \(Q^+(3,q)\) (English)
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    1988
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    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 \(Q^+(3,q))\).
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    linear flocks
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    Thas flock
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