论文标题

线性多步法和全球理查森外推

Linear multistep methods and global Richardson extrapolation

论文作者

Fekete, Imre, Lóczi, Lajos

论文摘要

在这项工作中,我们研究了经典的Richardson外推(RE)技术,以加速由线性多步法方法(LMMS)产生的序列的收敛,以在数值上求解普通微分方程系统的初始值问题。 LMM-RE方法的优点在于,合并的方法具有较高的阶和有利的线性稳定性属性,而$ a - 或$ a(α)$ - 稳定性,并且可以使用现有的LMM代码,而无需任何修改。

In this work, we study the application the classical Richardson extrapolation (RE) technique to accelerate the convergence of sequences resulting from linear multistep methods (LMMs) for solving initial-value problems of systems of ordinary differential equations numerically. The advantage of the LMM-RE approach is that the combined method possesses higher order and favorable linear stability properties in terms of $A$- or $A(α)$-stability, and existing LMM codes can be used without any modification.

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