Showing math.DGShow all
2 papers · 1 filter
math.DG2025
Open orbits in causal flag manifolds, modular flows and wedge regions
Karl-Hermann Neeb
We study open orbits of symmetric subgroups of a simple connected Lie group G on a causal flag manifold. First we show that a flag manifold M of G carries an invariant causal struc…
math.DG2024
Elliptic domains in Lie groups
Jakob Hedicke, Karl-Hermann Neeb
An element of a Lie group is called stably elliptic if it is contained in the interior of the set of elliptic elements, characterized by the property that $\mathrm{Ad}(g)…