Cohomogeneity one actions on anti de Sitter spacetimes
classification
🧮 math.DG
keywords
actionscohomogeneityantisittersubgroupsclassifyclosedconnected
read the original abstract
In this paper we classify, up to orbit equivalence, cohomogeneity one actions of connected closed Lie subgroups of $U(1,n)$ on the $(2n+1)$-dimensional anti de Sitter spacetime $AdS^{2n+1}$. We also give some new examples of nonproper cohomogeneity one actions on $AdS^{n+1}$ and determine parabolic Lie subgroups of $SO(2,n)$ and their orbits in $AdS^{n+1}$
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