Stein implicit Runge-Kutta methods with high stage order for large-scale ordinary differential equations

  • Authors:
  • A. Bouhamidi;K. Jbilou

  • Affiliations:
  • L.M.P.A, Université du Littoral, 50 rue F. Buisson BP699, F-62228 Calais-Cedex, France;L.M.P.A, Université du Littoral, 50 rue F. Buisson BP699, F-62228 Calais-Cedex, France

  • Venue:
  • Applied Numerical Mathematics
  • Year:
  • 2011

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Abstract

The Runge-Kutta method is one of the most popular implicit methods for the solution of stiff ordinary differential equations. For large problems, the main drawback of such methods is the cost required at each integration step for computing the solution of a nonlinear system of equations. In this paper, we propose to reduce the cost of the computation by transforming the linear systems arising in the application of Newton's method to Stein matrix equations. We propose an iterative projection method onto block Krylov subspaces for solving numerically such Stein matrix equations. Numerical examples are given to illustrate the performance of our proposed method.