Nonlinear Behaviour of Time-Stepping Algorithms for Initial Value Problems

Details Nonlinear Behaviour of Time-Stepping Algorithms for Initial Value Problems Nonlinear Behaviour of Time-Stepping Algorithms for Initial Value Problems

1995-09-27

arxiv.org/abs/solv-int/9509011v1

Nonlinear Sciences

Exactly Solvable and Integrable Systems

uuencoded compressed postscript file, 12 pages paper with included figures. (source file: 3.1 Mb)

Scientific paper

Recent advances in nonlinear dynamical systems theory provide a new insight into numerical properties of discrete algorithms developed to solve nonlinear initial value problems. Basic features like accuracy and stability are well pointed out through diagrams or maps of computed asymptotic solutions in a suitable parametric space. Applying this methodology to a nonlinear test equation, we compared some numerical features of the well known second-order Crank-Nicolson solver with those of a recent proposed version which is fourth-order accurate. The approach gives some useful indication on the capabilities of familiar and innovative ODE integrators when applied to nonlinear problems.

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