Generalized hexagons and polar spaces

AbstractStarting with the Tits’ description of the Moufang hexagons we discuss the construction of the known generalized hexagons as group coset geometries and some related topics

Generalized hexagons and polar spaces.

The authors have rediscovered the proof of most of Theorem 1.1 of A. Yanushka [Israel J. Math. 23 (1976), no. 3--4, 309--324; which in the meantime has been very satisfactorily generalized by M. A. Ronan [Invent. Math. 57 (1980), no. 3, 227--262; Geom. Dedicata 11 (1981), no. 1, 61--67; J. Combin. Theory Ser. A 29 (1980), no. 2, 249--250;] and J. A. Thas [ibid. Ser. A 29 (1980), no. 3, 361--362;