Semisimple weakly symmetric pseudo-Riemannian manifolds
- Author(s): Chen, Z
- Wolf, JA
- et al.
Published Web Locationhttps://doi.org/10.1007/s12188-018-0195-8
We develop the classification of weakly symmetric pseudo-Riemannian manifolds G / H where G is a semisimple Lie group and H is a reductive subgroup. We derive the classification from the cases where G is compact, and then we discuss the (isotropy) representation of H on the tangent space of G / H and the signature of the invariant pseudo-Riemannian metric. As a consequence we obtain the classification of semisimple weakly symmetric manifolds of Lorentz signature (n- 1 , 1) and trans-Lorentzian signature (n- 2 , 2).