9 citations · 13 across the 4 of their papers we have counts for
4 papers
Regular parallelisms on PG(3,R) from generalized line stars: The oriented case
Rainer Löwen
Using the Klein correspondence, regular parallelisms of PG(3,R) have been described by Betten and Riesinger in terms of a dual object, called a hyperflock determining (hfd) line se…
Regular parallelisms on PG(3,R) admitting a 2-torus action
Rainer Löwen, Günter F. Steinke
A regular parallelism of real projective 3-space PG(3,R) is an equivalence relation on the line space such that every class is equivalent to the set of 1-dimensional complex subspa…
Parallelisms of admitting a 3-dimensional group
Rainer Löwen
Betten and Riesinger constructed Parallelisms of with automorphism group by applying the reducible $\mathop{\rm SO}(3,…
A characterization of Clifford parallelism by automorphisms
Rainer Löwen
Betten and Riesinger have shown that Clifford parallelism on real projective space is the only topological parallelism that is left invariant by a group of dimension at least 5. We…