# On the Motion of a Heavy Material Point on a Rotating Sphere (Dry Friction Case)

*2015, Volume 20, Number 3, pp. 225-233*

Author(s):

**Burov A. A., Shalimova E. S.**

The problem of motion of a heavy particle on a sphere uniformly rotating about a fixed axis is considered in the case of dry friction. It is assumed that the angle of inclination of the rotation axis is constant. The existence of equilibria in an absolute coordinate system and their linear stability are discussed. The equilibria in a relative coordinate system rotating with the sphere are also studied. These equilibria are generally nonisolated. The dependence of the equilibrium sets of this kind on the system parameters is also considered.

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