Flag transitive c.F4 (2)-geometries.

This paper contributes to the classification of flag transitive cF₄-geometries. Here, under some mild extra conditions, we determine those geometries in which the point-residue is a building of type F₄(2) and we show that the automorphism groups are ²2E₆(2) : 2 or 3.²E₆(2) : 2 orE₆(2):2 or 2²⁶ : F₄(2). This work was started by Corinna Wiedorn. In this paper we follow her ideas and just show that the corresponding amalgams are uniquely determined. [ABSTRACT FROM AUTHOR]