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New extrapolation methods for initial value problems in ordinary differential equations. (English) Zbl 0962.65059

This paper is concerned with the numerical solution of initial value problems in ordinary differential equations by means of extrapolation methods based on rational one-step methods. Starting with one-step nonlinear rational methods which use high order derivatives, the authors propose both polynomial and rational extrapolation based on these methods. It is shown that the proposed methods are A-stable. Finally, some numerical results for the nonlinear scalar equation \( y' = 1 + y^2 \) when extrapolation is based on the inverse explicit Euler method are presented.

MSC:

65L06 Multistep, Runge-Kutta and extrapolation methods for ordinary differential equations
65L05 Numerical methods for initial value problems involving ordinary differential equations
65L20 Stability and convergence of numerical methods for ordinary differential equations
34A34 Nonlinear ordinary differential equations and systems
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