A splitting preconditioner for the iterative solution of implicit Runge-Kutta and boundary value methods

We study preconditioned iterative methods for the linear systems arising in the numerical integration of ODEs and time-dependent PDEs by implicit Runge-Kutta and boundary value methods. A preconditioning strategy based on a Kronecker product splitting of the coefficient matrix is proposed, and some useful properties of the preconditioned matrix are established. Numerical examples are presented to illustrate the effectiveness of this approach.