, Volume 64, Issue 3, pp 255-263,
Open Access This content is freely available online to anyone, anywhere at any time.
Date: 16 Oct 2011

A geometric proof of a theorem on antiregularity of generalized quadrangles


A geometric proof is given in terms of Laguerre geometry of the theorem of Bagchi, Brouwer and Wilbrink, which states that if a generalized quadrangle of order s > 1 has an antiregular point then all of its points are antiregular.