A group-theoretic characterization of classical unitals (Q1973454)
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scientific article; zbMATH DE number 1437110
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | A group-theoretic characterization of classical unitals |
scientific article; zbMATH DE number 1437110 |
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A group-theoretic characterization of classical unitals (English)
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14 December 2000
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The authors prove the following beautiful characterization of the classical unitals: A unital embedded in \(\Pi=PG(2,q^2)\) is classical (i.e., induced by a unitary polarity) if and only if it is fixed by a subgroup of order \(q^2-q+1\) of a Singer group for \(\Pi\).
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projective plane
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characterization
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unitals
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