Bireflectionality in Classical Groups
Bireflectionality in Classical Groups
The motion groups of the real Euclidean plane and of the elliptic plane, the group of projectivities of a line, the projective general linear group PGL 2 (K), some orthogonal groups O 3 (K, Q) with char K = 2 (see [8]), are all bireflectional (zweispiegelig). There can be no …