Generalized Quadrangles Derived from Groups and Having $s=t+2$

Abstract

The known generalized quadrangles with parameters $(s,t)$ where $|s-t|=2$ have been characterized in several ways by M. De Soete $[D]$, M. De Soete and J. A. Thas $[DT1]$, $[DT2]$, $[DT4]$, and the present author $[P]$. Certain of these results are interpreted for a coset geometry construction.