2 papers
math.GR2025
Hodge operators and groups of isometries of diagonalizable symmetric bilinear forms in characteristic two
Linus Kramer, Markus J. Stroppel
We study groups of isometries on non-alternating symmetric bilinear forms on vector spaces of characteristic two, and actions of these groups on exterior powers of the space, viewe…
math.CO2025
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…