Dynamics on pseudo-Riemannian manifolds

Much more than in Riemannian geometry, isometries and conformal transformations of pseudo-Riemannian manifolds can have rich dynamics.  There are, accordingly, more interesting groups acting, more complicated orbit structures, and more flexible global geometries.  I will survey a few topics in dynamics on pseudo-Riemannian manifolds and present some contributions of me and my collaborators.