- Published 2009

In this paper, we first investigate the geometry of the orbits of the isotropy action of a semi-simple pseudo-Riemannian symmetric space by investigating the complexified action. Next we investigate the geometry of the orbits of a Hermann type action on a semi-simple pseudo-Riemannian symmetric space. By considering two special Hermann type actions on a semi-simple pseudo-Riemannian symmetric space, we recognize an interesting structure of the space. As a special case, we we recognize an interesting structure of the complexification of a semi-simple pseudo-Riemannian symmetric space.

@inproceedings{Koike2009HermannTA,
title={Hermann type actions on a pseudo-Riemannian symmetric space},
author={Naoyuki Koike},
year={2009}
}