It is shown that every automorphism of a classical unital over a certain (not
necessarily commutative) field
is induced by a semi-similitude of a corresponding hermitian form.
In particular, this is true if the form uses an involution of the second
kind.
@article{1136902624,
author = {Stroppel, Markus and van Maldeghem, Hendrik},
title = {Automorphisms of Unitals},
journal = {Bull. Belg. Math. Soc. Simon Stevin},
volume = {12},
number = {5},
year = {2006},
pages = { 895-908},
language = {en},
url = {http://dml.mathdoc.fr/item/1136902624}
}
Stroppel, Markus; van Maldeghem, Hendrik. Automorphisms of Unitals. Bull. Belg. Math. Soc. Simon Stevin, Tome 12 (2006) no. 5, pp. 895-908. http://gdmltest.u-ga.fr/item/1136902624/