Generalized hybrid momentum maps and reduction by symmetries of forced mechanical systems with inelastic collisions

Abstract

This paper discusses reduction by symmetries for autonomous and non-autonomous forced mechanical systems with inelastic collisions. In particular, we introduce the notion of generalized hybrid momentum map and hybrid constants of the motion to give general conditions on whether it is possible to perform symmetry reduction for Hamiltonian and Lagrangian systems subject to non-conservative external forces and non-elastic impacts, as well as its extension to time-dependent mechanical systems subject to time-dependent external forces and time-dependent inelastic collisions. We illustrate the applicability of the method with examples and numerical simulations.

29 pages, 4 figures. Accepted in J. Math. Phys

References in corpus (6)

• Routh's procedure for non-Abelian symmetry groups
• Symmetries and periodic orbits in simple hybrid Routhian systems
• Symmetries, constants of the motion and reduction of mechanical systems with external forces
• Geometric Hamilton-Jacobi theory for systems with external forces
• Routh reduction and the class of magnetic Lagrangian systems
• Hybrid Routhian reduction for simple hybrid forced Lagrangian systems