The extrapolation of Numerov's scheme for nonlinear two-point boundary value problems

The extrapolation of Numerov's scheme for nonlinear two-point boundary value problems
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非线性两点边值问题Numerov格式的外推

DOI:
10.1016/j.apnum.2006.02.009
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发表时间:
2007-03
影响因子:
2.8
通讯作者:
Wang
Wang
中科院分区:
数学2区
文献类型:
--
作者:
Yuan-Ming;Wang

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本文研究半线性和强非线性两点边值问题Numerov格式的外推算法。得到了Numerov格式解的渐近误差展开式。基于渐近误差展开式,构造了Richardson外推法,从而大大提高了数值解的精度。数值结果证明了外推算法的有效性。
This paper is concerned with the extrapolation algorithm of Numerov's scheme for semilinear and strongly nonlinear two-point boundary value problems. The asymptotic error expansion of the solution of Numerov's scheme is obtained. Based on the asymptotic error expansion, Richardson's extrapolation is constructed, and so the accuracy of the numerical solution is greatly increased. Numerical results are presented to demonstrate the efficiency of the extrapolation algorithm.
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