-rozměrné konfigurace
-rozměrné konfigurace. II.
Rayon de la sphère circonscrite au tétraèdre en fonction des arêtes
Real analytic projective planes with large automorphism groups.
Reflection loops of spaces with congruence and hyperbolic incidence structure
In an absolute space with congruence there are line reflections and point reflections. With the help of point reflections one can define in a natural way an addition + of points which is only associative if the product of three point reflection is a point reflection again. In general, for example for the case that is a linear space with hyperbolic incidence structure, the addition is not associative. is a K-loop or a Bruck loop.
Regular conditional linear spaces with two consecutive line degrees.
Regular hexagons in normed spaces and a theorem of Walter Benz.
Regular hyperbolic fibrations.
Regularity of algebras with applications to congruence class geometry
Reguli and chains over skew fields.
Relativistische Mechanik mit klassicher Geometrie und Kinematik.
Remark on "Planes with analogues to Eucledian angular bisectors".
Remarks on projectivities.
Replaceable nets and improper collineations
Right nuclear decomposition of generalized André systems.