7 citations · 14 across the 11 of their papers we have counts for
3 papers · 1 filter
Confluence Graphs of Unitals
Theo Grundhöfer, Markus J. Stroppel, Hendrik Van Maldeghem
We show that the cliques of maximal size in the confluence graph of an arbitrary unital of order have size , and that these cliques are the pencils of all blocks through…
Unitals with many involutory translations
Theo Grundhöfer, Markus J. Stroppel, Hendrik Van Maldeghem
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).
Finite subunitals of the Hermitian unitals
Theo Grundhöfer, Markus J. Stroppel, Hendrik Van Maldeghem
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 gene…