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math.GT2021★ 1 cited
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…
math.GT2018★ 3 cited
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,…
math.GT2017★ 9 cited
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…