Collineation groups of the intersection of two classical unitals (Q2781049)

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scientific article; zbMATH DE number 1720253
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Collineation groups of the intersection of two classical unitals
scientific article; zbMATH DE number 1720253

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    Collineation groups of the intersection of two classical unitals (English)
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    6 June 2002
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    unital
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    A classical unital in \(PG(2,q)\) is the set of self-conjugate points of a Hermitian (unitary) polarity. It was shown by \textit{B. C. Kestenband} [Geom. Dedicata 11, 107--117 (1981; Zbl 0452.51007)] that there are seven classes of intersections of a pair of unitals. It is shown here that each such class is projectively unique. The collineation group of each intersection is found.
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