Cohomological Splitting of Coadjoint Orbits

Abstract

The rational cohomology of a coadjoint orbit $\mathcal{O}$ is expressed as tensor product of the cohomology of other coadjoint orbits ${\mathcal{O}}_k$, with $dim{\mathcal{O}}_k<dim\mathcal{O}$.

Minor revision. Version to appear in Archiv der Mathematik