A multistep formulation of the optimized Lax-Wendroff method for nonlinear hyperbolic systems in two space variables

Introduction. In this note we develop a multistep formulation of the optimized Lax-Wendroff method for hyperbolic systems. This scheme was derived by Strang 6, 7. The present formulation extends in a natural way, the two-step formulation of Richtmyer 5 for systems in one-space variable. We summarise this case in the next section. One Space Dimension. We consider the first-order conservation 'law