Browsing by Author "Steinke, G. F."
Löwen, R.; Steinke, G. F. (BELGIAN MATHEMATICAL SOC TRIOMPHE, 2014)We show that the circle space of a spherical circle plane is a punctured projective 3-space. The main ingredient is a partial solution of the problem of Apollonius on common touching circles.
Non-classical 4-dimensional Minkowski planes obtained as brothers of semiclassical 4-dimensional Laguerre planes Lowen, R.; Steinke, G. F. (University of Canterbury. Dept. of Mathematics, 1998)We describe the first non-classical 4-dimensional Minkowski planes and show that they have 6-dimensional automorphism groups. These planes are obtained by a construction of Schroth  from generalized quadrangles ...