On cross-ratio in some Moufang-Klingenberg planes

Akpinar A., Celik B.

World Academy of Science, Engineering and Technology, vol.68, pp.10-14, 2010 (Scopus) identifier


In this paper we are interested in Moufang-Klingenberg planesM(A) defined over a local alternative ring A of dual numbers. We show that a collineation of M(A) preserve cross-ratio. Also, we obtain some results about harmonic points.