, Volume 64, Issue 3, pp 255-263,
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Date: 16 Oct 2011

A geometric proof of a theorem on antiregularity of generalized quadrangles

Abstract

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.

Communicated by J. D. Key.
This work was partially supported by a grant from the Research Grants Council of the HKSAR, China (Project number: HKU7060/11P).