5 citations · 11 across the 6 of their papers we have counts for
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Local tube realizations of CR-manifolds and maximal abelian subalgebras
Gregor Fels, Wilhelm Kaup
For every CR-manifold germ (M,a) local tube realizations are characterized by certain abelian subalgebras of the real Lie algebra hol(M,a) of all germs of (real-analytic) infinites…
Classification of Levi degenerate homogeneous CR-manifolds in dimension 5
Gregor Fels, Wilhelm Kaup
In this paper we present new examples of homogeneous 2-nondegenerate CR-manifolds of dimension 5 and give, up to local CR-equivalence, a full classification of all CR-manifolds of…
Locally homogeneous finitely nondegenerate CR-manifolds
Gregor Fels
Germs of locally homogeneous CR manifolds M can be characterized in terms of certain algebraic data, e.g., by CR-algebras. We give an explicit formula which relates the Levi form o…
Homogeneous Levi degenerate CR-manifolds in dimension 5
Gregor Fels, Wilhelm Kaup
We investigate CR-manifolds which are tubes M:= F x iV over general bases F in a real vector space V and characterize the k-nondegeneracy of M in terms of the real affine geometry…