Journal of Lie Theory 13 (2003), No. 2, 443--455
Copyright Heldermann Verlag 2003
More about Embeddings of Almost Homogeneous Heisenberg Groups
J. Hoheisel
Institut f. Geometrie und Topologie, Universität Stuttgart, 70550 Stuttgart, Germany
M. Stroppel
Institut f. Geometrie und Topologie, Universität Stuttgart, 70550 Stuttgart, Germany
Heisenberg groups are simply connected nilpotent Lie groups of class 2. A group is called almost homogeneous if its automorphism group acts with at most 3 orbits. Several open problems about the existence of embeddings between almost homogeneous Heisenberg groups have been posed in a previous paper by the second author [J. Lie Theory 10 (2000) 443-453]. Most of these problems are solved.
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