Two Step Runge-Kutta-Nyström Methods for y'' = f(x, y) and P-Stability

  • Authors:
  • Beatrice Paternoster

  • Affiliations:
  • -

  • Venue:
  • ICCS '02 Proceedings of the International Conference on Computational Science-Part III
  • Year:
  • 2002

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Abstract

P-stability is an important requirement in the numerical integration of stiff oscillatory systems, but this desirable feature is not possessed by any class of numerical methods for y驴 = f(x, y). It is known, for example, that P-stable linear multistep methods have maximum order two and symmetric one step polynomial collocation methods can't be P-stable (Coleman 1992). In this note we show the existence of P-stable methods within a general class of two step Runge-Kutta-Nystr枚m methods.