RUNGE-KUTTA COLLOCATION METHODS FOR RIGID BODY LIE-POISSON EQUATIONS


T. Ergenc, B. Karasozen


The rigid body Lie-Poisson structure in three dimensions is considered. We show that the symplectic collocation type Runge-Kutta methods preserve the one-form of the underlying system. The linear error growth, energy and momentum conservation properties of the numerical solutions are discussed for Euler top equation.


Keywords:  Lie-Poisson system, one-forms, Euler top, Runge-Kutta methods