Browsing by Author "Maldeghem, Hendrik van"

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    Finite subunitals of the hermitian unitals
    (2022) Grundhöfer, Theo; Stroppel, Markus J.; Maldeghem, Hendrik van
    Every finite subunital of any generalized hermitian unital is itself a hermitian unital; the embedding is given by an embedding of quadratic field extensions. In particular, a generalized hermitian unital with a finite subunital is a hermitian one (i.e., it originates from a separable field extension).
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    Unitals with many involutory translations
    (2023) Grundhöfer, Theo; Stroppel, Markus J.; Maldeghem, Hendrik van
    If every point of a unital is fixed by a non-trivial translation and at least one translation has order two then the unital is classical (i.e., hermitian).