This paper presents a sequence of deferred correction (DC) schemes built recursively from the implicit midpoint scheme for the numerical solution of general first order ordinary differential equations (ODEs). It is proven that each scheme is A-stable, satisfies a B-convergence property, and that the correction on a scheme DC(2j) of order 2j of accuracy leads to a scheme DC(2j+2) of order 2j+2. The order of accuracy is guaranteed by a deferred correction condition. Numerical experiments with standard stiff and non-stiff ODEs are performed with the DC2, ..., DC10 schemes. The results show a high accuracy of the method. The theoretical orders of accuracy are achieved together with a satisfactory stability.
翻译:本文件介绍了从一般一阶普通差分方程(ODEs)数字解决方案的隐性中点办法中反复制定的推迟更正(DC)方案顺序,证明每个方案都A稳定,符合B趋同属性,对DC(2j)号命令2j号命令的准确性更正导致第2j+2号命令DC(2j+2)号命令DC(2j+2)号计划,准确性顺序由延迟更正条件保证。标准硬度和非硬度的代码的数值实验与DC2号、DC10号计划一起进行,结果显示方法高度准确性,理论准确性排序与令人满意的稳定性一起实现。