6533b839fe1ef96bd12a6d7b

RESEARCH PRODUCT

New Families of Symplectic Runge-Kutta-Nyström Integration Methods

José Luis Regidor RosFernando CasasSergio Blanes

subject

AlgebraRunge–Kutta methodsKernel (image processing)Lie algebraOrder (group theory)Mathematics::Numerical AnalysisSymplectic geometryHamiltonian systemMathematics

description

We present new 6-th and 8-th order explicit symplectic Runge-Kutta-Nystrom methods for Hamiltonian systems which are more efficient than other previously known algorithms. The methods use the processing technique and non-trivial flows associated with different elements of the Lie algebra involved in the problem. Both the processor and the kernel are compositions of explicitly computable maps.

https://doi.org/10.1007/3-540-45262-1_13