L. Bader et Cm. Okeefe, ARCS AND OVALS IN INFINITE K-CLAN GEOMETRY, Bulletin of the Belgian Mathematical Society Simon Stevin, 5(2-3), 1998, pp. 127-139
For a finite field GF(q), to a q-clan of matrices there are associated
generalized quadrangles, flocks of quadratic cones in PG(3, q), trans
lation planes and, for q even, ovals in PG(2, q). The connections with
generalized quadrangles, flocks and translation planes have recently
been extended to the case of an infinite field K, under certain extra
assumptions. In this note we extend the theory of ovals in PG(2, q) as
sociated with q-clans, q even, to ovals in PG(2, K) associated with K-
clans for (infinite) fields K of characteristic 2. Again, certain extr
a assumptions on the field K are made.