[en] From a variational principle, which is equivalent to Schroedinger's equation, equations are derived which allow one to describe a system of axial symmetry rotating around an axis perpendicular to the symmetry axis. Expressions are given for the moment of inertia, the angular velocity, and the contribution of the rotational energy to the total kinetic energy
Original Title
Variational principle, moment of inertia, angular rotational energy contribution