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Construction of explicit and generalized Runge-Kutta formulas of arbitrary order with rational parameters

Anton Huťa, Karl Strehmel (1982)

Aplikace matematiky

In the article containing the algorithm of explicit generalized Runge-Kutta formulas of arbitrary order with rational parameters two problems occuring in the solution of ordinary differential equaitions are investigated, namely the determination of rational coefficients and the derivation of the adaptive Runge-Kutta method. By introducing suitable substitutions into the nonlinear system of condition equations one obtains a system of linear equations, which has rational roots. The introduction of...

Convergence of numerical methods for systems of neutral functional-differential-algebraic equations

Tadeusz Jankowski, Marian Kwapisz (1995)

Applications of Mathematics

A general class of numerical methods for solving initial value problems for neutral functional-differential-algebraic systems is considered. Necessary and sufficient conditions under which these methods are consistent with the problem are established. The order of consistency is discussed. A convergence theorem for a general class of methods is proved.

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