Abstract:
The aim of this note is to present a simple proof of the completeness of the Manakov integrals for a motion of a rigid body fixed at a point in $\mathbb R^n$, as well as for geodesic flows on a class of homogeneous spaces $\mathrm{SO}(n)/\mathrm{SO}(n_1)\times\dots\times\mathrm{SO}(n_r)$.